When I say the sound from Nexus has progressed to another level over MJ, it really, really has; way beyond. I have yet to use the Audyssey MIC, only the UMKI-1. Straight away the noticeable difference over MJ is so obvious, the clarity, precision, detail, soundstage blending, bubble and dynamics are way beyond MJ. Bass is integrated perfectly and provides the exact type of bass Iw as hoping for. I have been through my test scenes from various movies Quiet Place 1 and 2, Barbie, Ready Player One, Top Gun Maverick, Fall Guy and Baby Driver. So firstly clarity. It is exceptional. I noticed the dialogue with Nexus is so crystal clear and slightly higher in volume? Way clearer than MJ and very impressive. It was our first noticeable difference when listening to the split screen telephone conversation in Fall Guy. This scene is also really good to gauge panning of the sound over all front 3 channels (LCR) and no surprise here the sound is excellent. You cannot tell its coming from the L, C or R, its so good; seamless over the whole front. This was one of my biggest surprises with Nexus, the front sound stage blends and pans over all speakers so, so well; wonderful stuff. You should be proud of this alone! Next the precision and detail. On QP2 during the scene when they are carrying the baby in a box from the tunnel to the safe industrial unit, you can hear extra and precise detail from the burning flames and then when she catches her bag on the wired fence. I have never heard the bag catch so detailed and accurate, you hear litterally hear the scraping of the leather; its awesome (if I pin dropped you would hear it; my word its unreal!). Far more effects are heard throughout this scene than before, the sound of crickets outside is way more obvious and detailed and I especially love the bit when the girl uses the microphone to invoke feedback on the speaker, bass integrates so well and the precise detail/clarity here is outstanding (Blows MJ out of the water!). As they progress, the creature chases them through the warehouse and its here that Nexus does it for me. You can hear every barrel the creature is knocking/moving and rolling out of the way, the height channels seamless with the subs creating such an unreal depth of atmos bubble. Every single movement, tap, knock, scrape, screech, bang is precision perfect! So far I am using Dirac Harman Curve 8db and aligned with centre as I am finding the precision detail for some movies in QP a little better than LFE+Main; I will come back to this as I am loving both (its really hard to decide!). Using the same config/setup I then move on to ready player one and again detail is so precise, crystal clear, its as if a filter has been removed from MJ to allow the sound to be cleaner, enhancing clarity and dynamics. The hand punches on ceiling of car, the coins and then kong jumping around; my word it is incredible. How did this get better than MJ, was it all Nexus OR did the UMKI-1 play a part also? I cannot stress how detailed, clean, precise and spacious Nexus has made this Atmos bubble; seriously if you have not tried this please go and do this NOW!! I am now on to the final straight with top Gun Mavarick and here I push the volume up to see how the configuration with Nexus plays out. I can really push the sound way, way up and even though its loud, you can hear everything so, so well; no distortion or over the top loudness. Just pure class. It feels like Nexus has finally unleashed my Cinema 40! With Barbie, its mainly for the dialogue and highs/treble, as the range of voices is great and the music, backing singers all given the enhanced experience of clarity and detail. The family think I am mad as I repeat the same tests over and over but I guess its the only way you would notice any difference? baby Driver and the scrap yard scene where we have music, detail and then transition to dialogue is where I compare align with centre and LFE+Main. They both have very close qualities and LFE+Main might just edge for the music and bass part however aligning with centre may just edge for the detail and dialogue focus of movies where dialogue is the key bit/type of movie. For example, Rivals on Disney Plus, LFE+Main rocked the various music throughout that whole series and I highly recommend a watch and especially a listen! I was very surprised to hear such differences moving from MJ. I wasn’t expecting such obvious enhancements. Incredible work Serko and appreciated as ever. How can we get clarity, detail or dynamic spacious Atmos bubbles with such wonderfully integrated bass better than this? It really is that good and I mean that good. At this point I am hearing the applause from the conductor test clip ;-)
I'm still enjoying how well MJ worked better than prior Evo1 releases, so it's hard to imagine Nexus being that much clearer, as you've nicely describe. It is a wonder as to what makes such a difference with Nexus. MJ runs off the measurements through Audyssey, using a lot of them (8 measurements) with unknown quality having no way to review them. I'm curious, what was your process with recordings for Nexus? How many mic positions; how far apart; did you review each to trash noisy traces; etc.
@@andrew81818 completely understand where you are coming from. I kept this really, really simple. Single measurement for each speaker using UMIK-1 using the VLC sweeps for all except LFE (In my MLP). I run 5.2.4. I used REW for the LFE sweeps switching one sub on and other sub off (vice versa). After having a single measurement for each, I just run Nexus. I did spend a little while getting the bass/subs correct. I found that REW LFE with -10 checkbox enabled and setting -8.00 db in REW provided the best results (I mean it sounds great!). My sub output levels became +1.5 and -1 as a result after uploading. the .ady file (Make sure you completely power off/cycle after upload!). That was it. I have yet to listen to multiple measurements per speaker doing the cross correlate/vector average; mainly to keep it simple and to just become familiar with the process/my setup etc although I am experimenting with this now. The difference is night and day with MJ seriously. I didn't expect it to be this way, I was very, very surprised. This is with Nexus defaults also.
@@DigitalKirkley Thanks for the info. I'd be interested to hear how things turn out after you've tried multiple measurements. I am wondering if having more measures (vector average) may actually hurt, not help. One clean recording (per channel) may be all you need for Nexus, since it filters only the bass. I'm curious if Nexus (vs MJ) may perform worse off-axis though (non MLP) - perhaps less uniform (flat) across frequencies by over correcting for the single point in the room?
@@anktry203 I used the Dirac Harman 8db (However I like both 6db and 8db). I think I prefer 6db with LFE+Main and 8db with LFE. Just play with them all until you find what you like best 😉
Always happy to contribute as your work continues to blow me away. Atmos channels have come alive in DD+ TV shows and it put me right in the middle of a thunderstorm without waking kids. Truly, thank you again for all you do.
Thank you for your time and effort in creating this optimization tool. My system now sounds extremely clear/balanced and I'm hearing details in my speakers I never thought possible!
You took the time to respond to my questions earlier - which was really nice. I just finished with A1 Evo (w/o Nexus) on my x1600 and I'm really grateful for all the work you've put into this. Thank you. Nexus is definitely beyond my skill but the A1 Evo was a breeze.
What can I say, amazing 🤯 Much appreciation. I don't think you realy realise the magnitude of your work and how much you are helping the community to get the best out of their sound system 👏
Thanks for your work, I follow you since A1 evo and done all your tutorials. The sound became better and better each time. This lastest grinding change the done, even with a poor audio band on an old serie. It took me about 4 hours to do it properly. That’s amazing
Serko, I just donated $20 to your YT account. MJ Maestro was/is amazing but NEXUS took my home theatre to a new level! Thank you so much for all of your hard work!
First :D OCA you are amazing. We appreciate you and your countless hours of hard work more than you know. I cannot wait to watch this again later and setup my new Nexus setup!
First I want to say thanks for all your work in this arena. What you have been doing is amazing and makes a huge difference in the theater room. I do have a problem I am trying to solve. I have made three position mic measurements on a particular speaker that when I cross correlate I have it synchronized at the start incorrectly. I have the MDAT file for you to take a look at before and after correlation if that helps.
The drive link to the mdat file is: drive.google.com/drive/folders/13Wg07ABIOObL_xT0lRxjwuH4r4zkPQDG?usp=sharing. The actual speaker in question is TFL. I have all my other measurements after cross aligning and Vectoring in this file also if you need to see them. TFL # is after Alignment, and TFL B4 Corr is before alignment. Also noting the second set of sine waves tf2 has a significantly higher percentage which might be the cause but technically this spot is further from the speaker.
I appreciate that! In Overlays/Impulse graph, if you right click on the problem measurement in the measurements list on the left and select "offSet t =0", a pop up window will open where you can move the speaker impulse back and forth and manually align it to the MLP response. You can use fine adjustment and use the numeric input box for even finer adjustments. I fixed TFL for you: drive.google.com/file/d/1NU9C4mOnW0wScFLev_f8f0HhyuD8c84T/view?usp=sharing
@@ocaudiophile Again thanks so much and I ran through the exercise myself also to make sure I knew how to make that adjustment. One last question and this will be quick. I noticed some speakers +100 or -100% are opposite of each other? This normal or do I have wiring issues?
That's not a very good indication of speaker polarity. Compare their phase responses in Overlays by smoothing them to "Psy" first. You can invert the measurement in REW, it's one of the right click options. You can see which polarity is more inline with the other speaker(s).
I finished a measurement of 7.2.4 system, and Optimisation in Nexus v2.2. Used -12dBFS lossless sweeps with the -10 dB SW sweep. Everything came out as expected and sounds fantastic. The bass integration is a game changer - nice tight, smooth, extended, non-boomy bass matched to e target curve of my choice! Nexus allows me to add extra measurement positions, or change a sub setup, etc, without having to remeasure the whole setup. It will also allow me to do a DEQ setup as well after I experiement with the non-DEQ setup. Thanks Serko for your great coding and persistance in developing this Audyssey optimisation. Beats me what the actual guys at Audyssey are doing - nothing new from them except a new smoothing algo all year.
Hello OCA . Please advise me , how to aproach this if i have a bass shaker . Denon X3500H AVR . So i run audissey and fool it by connecting a double RCA to both sub outputs on the avr and connecting both RCA to the subwoofer . My subwoofer has 2 RCA input , L+R . So when calibrating , Audissey sees 2 subwoofer when in fact there is only one . After calibrating with audissey i just move (connect) the sub 2 output to the Fosi Tp02 amp which drives my Dayton Basx A300 . In all of this i think i have a problem regarding the volume , because at the end when connect the RCA correect , i mean the sub output from AVR to subwoofer now i have 2 RCA signals that enters the subwoofer , not only one as i do the calibration . I hope i can make myself understood ... Thank you
Man I got say, I am loving testing and messing arround with A1 Evo Nexus!! I notice some things while playing around with Evo. 1 - Since it only calibrates below 282hz, if you put a custom curve like the Harman Kardon that have a high frequency roll off, it will just ignore the high frequency roll off of the curve sinse it doenst calibrate high frequencies, so the custom curve only applies below 282hz by default. (yes you can make it calibrate until 20khz but I did some tests and its better leave at default or the maximum 1khz recommended). 2 - if you increase the maxboost it will take a lot longer to generate the ady., some times it even seens stuck (best to leave it in the default mode) 3 - in my case I updated my old REW to the the latest beta, it didnt work out so if you got stuck genereting the ady file just install REW fresh. 4 - Analysing my speakers impulse before and after calibration, I noticed that it changes a bit, not by much but it changed, is Nexus trying to corret Impulse Response just like Dirac? Finally, my system definitively sounds clearer with more details and better stereo imaging in both movies and musics, I tried calibrating it manually, tried Audyssey app with a lot of adjustments, tried Audyssey Supreme calibration (it was what I was using before this new calibration, and the better of all until now with Nexus), and Nexus is clearer the winner of all this options above. Thanks OCA for this awesome tool!!!
So far the most significant improvement compared to EVO Maestro. I have the UMIK-1 USB Measurement Microphone that I've used for measuring. Thank you very much for your efforts.
Is there a chance to get something like this for a 2 way stereo system or much better for car hifi system running a raspberry pi with camilladsp??? What you are doing with REW is just amazing!!!
Just went through the process. Like being able to redo measurements with rew! (Such as lowering my subwoofer to have near 0db volume adjust needed.) Worked fantastic with a umik-1, best sounding my Paradigm Signature S8 have ever sounded. Crystal clear, nice thumping bass. Did it all with DEQ at 10 offset.
@@vortexor1 I've used each release, liked the initial EVO ones. My setup does sound different than Maestro MJ. Being able to use my UMIK calibrated microphone and find the central spot was a good improvement. I've used many target curves, making each release hard to compare. Using the Harman Kardon curve this time.
How do I do "audio sweep files" for my Auro-3D 13.1 configuration (specifically CH and TS as they are not in the Atmos files provided?) - I use a Marantz 8805A AVR not that it matters? And thank you for all the excellent calibration work - an amazing upgrade from straight Audessey; best I've ever heard my system sound!
I have heard people manage to play Auro channels when they set FH and RH instead of TF & TR but I don't know much detail about Auro systems tbh. However, you can always switch banana plugs behind the AVR and measure them with any other sweep. For just CH and TS that shouldn't be tedious. Give them appropriate names in Nexus as in the Auro ady and you are good to go.
@@ocaudiophile that seems to be the best approach switching the plugs however I would assume care be taken the same amplifier be used because of their individual sound profiles. Once again I love your contributions with these calibration software tools. Simply amazing and superior sound over Audessy. Please keep it up.
Mr OCA I was watching your live listening with my headphones but I fall sleep but in a good way: the most amazing thing right away I start dreaming with you , in my dream my brain was listening to your live and it was like I was in a classroom paying attention to your Evo Nexus guide , I even meet you after the class ends I shook your hands to thank you for your great work.
This is for folks who want to go full manual. It’s more involved and will yield slightly better performance. But it’s not going to be a night and day difference like plain audyssey to a1evo was.
Hello, first of all, thank you for what you do. I have a problem when launching the "optimize calibration" menu. The speakers are correctly named because they have been duplicated in REW. Then I confirm that I have activated the Dynamic EQ. I then entered the volume of my amp at the time of the measurements under REW. And from there, I have recommendations (in blue) like using the FoxDynamicEQ.exe etc.... and nothing happens anymore. Thank you in advance for your help. Kind regards
@@muehliism well i went into developer mode on the browser and checked for errors. Was the wrong beta version for me. V55 didnt work, v60 does work however.
Thank you very much for your efforts (22k lines of coding !!). Why is it that you don’t use a center channel speaker in your own set up ? Another question can I use the same process (REW) to fine tune my stereo with the minidsp 2x4 HD (instead of Audyssey). Regards
My fronts are very symmetrically placed in a rectangular room and throw a great phantom image higher than where I could place a center channel besides 2-way center channel designs inherently cause cancellations in the horizontal axis. You will see filter details in the notes after REW completes optimization. You could manually enter them in EQ window under Generic than change equalizer to Minidsp and REW will automatically adjust the filters which you can export as biquads ready to upload Minidsp.
That’s a very interesting point. Infact this will make optimum use of front stereo speakers- far more than they are used now. Also waiting for your comment on stereo calibration. Thanks once again.
Which calibration file should I use for the measurement? I will be taking the measurement on a Mac using the UMIK-1. From the video, it seems you uploaded a calibration file from your audio tools, but it’s not clear to me if I need to do something similar.
Hi, I am going to be setting up A DENON avr x1800h and I have 2 subs. A polk hts 12 and a wharfdale sw150. I know the amp doesn't do separate sub feeds but is it worth using the wharfdale in the set up and will a1 work it all out? Thanks.
Hi OCA. A few quick Nexus questions. The video part 2 has separate files for each speaker but there is a single m2ts file in the downloads folder. Do I need to edit this for the speakers I have? Sub levels before measuring. I turn the receiver to a high volume but do I need to level match the sub before measuring or is this not necessary? Couldn’t find a way to search comments so apologies if this has been asked already.
Trying to get this all working on a MAC Pro (Sequoia OS). Only issue are the 256k Atmos sweeps. VLC doesn't have a passthrough option on the Mac version (although Preview, Apple TV and Music now do). Mac has HDMI connected directly to Denon Avr but sweeps do not trigger Atmos mode on Avr. Is there a way of playing these sweeps on a MAC ?
Good afternoon. When measuring with Umik in the REW for the Nexus, how to measure the subwoofer link connected in this way - two subwoofers are physically connected to the sub 1 input (by the splitter), one subwoofer is connected to the sub 2 input. How to take measurements? Sw1 we measure two connected subwoofers to the first input, sw2 we measure one (third) subwoofer connected to the second output? Or is it possible to measure each subwoofer separately for sw1 and then somehow combine them? And at what volume of the receiver to take measurements with dynamicEQ turned on? I made it on -35 receivers (rew 75db) - Nexus swears in red that the subwoofer volume is too high and something about -12db. I made it on -42.5 - it still swears that the subwoofer is high. There are no volume controls on the subwoofers, all 3 subwoofers are the same - technics THX sb-tw50.
the two subwoofers in SW input 1 can be thought as one sub. Since you do not have a DSP that could handle different timings and filters (miniDSP) you cannot control them seperatly. The subwoofer output will always be the impulse response of both tuned manually. What you CAN do is to measure both while the other is physically off. Then you have both seperate impulse responses and you could align em via phase knobs to align there impulse maxima. After that, Nexus can do its voodoo.
Good day, thank you so much for everything you have done and continue to do for the community. I used Audyssey One and loved it and now I want to use this new version but I have a question. My setup is currently 5.1.5. My system is setup for both Dolby atmos and auro 3d, and I know auro went bankrupt, but any file with dts will utilize the full auro format. So my issue is that I do not see a sweep file for the top surround aka voice of god channel. Does this mean I wouldn't be able to use that speaker anymore or is there a way I can do it? Your response is greatly appreciated. Thank you again.
Hi Serkan, I watched the complete video and read a lot of the comments. Thanks for sharing your knowledge and putting so much time and effort in this project. I'm new to the optimization topic and I can't evaluate the benefits Nexus (doing all measurements on my own) has over Maestro (using the audyssey measurements). Do you have measured the results of both versions and compared them? Or how would you describe the audible difference of Nexus/Maestro in the room?
Some people say day and night but that's probably hard to explain. My system saw an improvement in sound of about 10-15% I 'd say. I have measured my results not because I needed to because I will only go back to the board if I hear something I don't like but I was testing the anti-DEQ tool and saw that Nexus results are better volume aligned in general.
Thank you for all the hard work and sharing all your knowledge. I have a question. I have an Auro 11.2. System and i think an easy workaround to get the Center Height and Top Surround is to meassure everything like you explain then transfer the ady file from your program and afterwards at least on my Denon 3800 go into Set Up Assistant and just put in all the Floor Channels like before and for the Height just put in 6 Pairs of Height Speakers (Front Height, Top Middle Left + Right and Rear Height) Front Height then plays over Front Height, Top Middle Left is Top Surround and Top Middle Right is Center Height) and the Rear Heights are Surround Heights. And in REW just type in the actual name of the Auro System. This works but i get stuck after typing in the Dynamic EQ DBs. Could the mistake be because i did this or because i did something wrong in REW. My Subs were really quiet compared to speakers (even the 10 db louder file) and there was too much noise for REW but i did the first trial just to see if it works and it always gets stuck after the Dynamic EQ (no error message).
Why don't you try switching TS and CH speaker cables with C and measure them with the Atmos C sweeps as usual. You don't need to do anything else after. You can safely ignore the noise warning with sub measurements, it's because full range sub measurements will always seem to REW as too noisy because subs have lower output than room noise level beyond 250Hz or so.
@ocaudiophile Thanks for the fast response. The reason is because my Reciever is in a really bad place to switch everything around. But i double checked and the sweeps play through the right channel. Next time i ll try that but before i ll try with your previous version and just name all my measurements like your program spits them out because i did 4 Positions in both. It sounded so good before so i m wondering if with the umik 1 it gets even better. Thanks again for all the help. You got me hooked on improving my audio but i m just too lazy and not so knowledgeable to be as obsessive as you lol.
Oh god i was even more stupid than i thought possible. The old code calculates with the Audyssey sweeps and the mic cal file. Well off to switching cables...
I take it that it is still advisable to use a miniDSP for subwoofer leveling/phasing before using this if the subwoofer outputs on the AVR don't send independent signals to both subwoofers?
Nexus is a stunning A1 release. Oh - my - word the sound has progressed to another level! Serko you are a genius and congratulations on another ground breaking version; this is some journey you are taking us on and very much appreciated as always. (I donated to your account Serko yesterday but did not show up) As a “beginner” like me, it has been a while since I shared an update and also finding time (Family related stuff etc) was key to getting going with Nexus. So before I get into the listening/sound test and movie clips used to share some detailed sound analysis, I thought I would share some “getting going experiences” first in case it can help anyone who really really wants to make the jump but haven’t quite got going yet!? For me Nexus is probably one of the most exciting releases of the year so far; I have been very eager to test since it was released. From my perspective I am still a bit of a noob in all of this as I am sure many people are, especially as Nexus requires a little bit more REW experience but I will work at it and give myself time to do so. My preset 1 and 2 has been used for Evo MJ (LFE+Mains vs ForceCentre - both are great regardless and I previously prior to Nexus switched depending on types of movies). With this new iteration it was clear I needed to be properly “prepared” for when I get time and being a beginner, trying to make this as easy, simple and effective as possible. It required a bit of investigation/setup to get going. The time to immerse myself into this is now underway. I also hope what I am saying resonates with other users out there who are preparing, maybe sitting on the fence, reading comments, pondering and poised wanting to make the jump; especially knowing that finding time is also critical to Nexus success! *REMEMBER* We can keep MJ on a Preset (or ready to put back on if need be) and if we are time bound, its easy to switch later to prevent any family complaints in the cinema room! We also know Nexus will be incredible (Based on all iterations so far), we have absolutely no doubt about that! So why would we not do this? We can sure can do this! So here goes.. I am a MacBook Pro user generally now but have desktop PC’s elsewhere in the house along with a multitude of other small devices. For example I am using Intel NUC (8th Gen), Raspberry Pi’s, oDroids and Tinkerboards. So where do I begin to ensure a seamless and issue free experience going forward? Obviously OCA’s videos and forum feedback plays the main part. What was key here was allowing myself to be able to support Dolby Atmos sweeps via HDMI to my AVR (Cinema 40) and remain out of the home cinema room altogether; allowing simple remote control. Without going into any detail I decided to opt to use my Intel NUC (8th GEN) as it has 2 x HDMI 2.0b ports and supports Dolby Atmos (TrueHD Atmos / DD+ Atmos) - I remember testing this ages ago with Windows prior to Linux/installing ESXi. It was currently being used with ESXi to run pfSense and other VM’s for house related automation and such like. (Note, I will be experimenting with MacBook Intel later as well as other devices but right now I will go for the easy well tested option - at least I think it is the easier/risk free option - share your experiences here as they will be very handy for others; especially Mac Book users!) So, Intel NUC at the ready I therefore decided to replace the SSD with a new SSD and installing Windows 11 (There might be HDMI virtualisation issues, so decided not to pursue!). Note you can pickup Intel NUC’s in UK for anywhere from 80 to 150 quid (ensure HDMI 2.0a/b ports) and are now supported by Asus. Great devices and a risk free route to get going and knowing Serko uses Windows for primarily creating this solution; so we can be as close to testing as the environment he himself uses. From there I ensured all drivers and BIOS was up to date. I have installed ASIO4ALL 2.15 (So I can use/test both ASIO and Java also), REW latest beta 57, VLC and done all the various configuration to ensure a simple test works as expected based on this video. Here I made sure that when remotely connected, the Dolby Atmos was still being played to my AVR via HDMI and switching as expected by using the Dolby Atmos test clips. Running a Dolby Atmos test clip will be critical later when creating a “zero” based setting Preset for validating settings on the AVR App! (The Intel NUC has now become my media centre for other things also and works very well!) Continued ..
Preparation is key right? So using my MacBook elsewhere in the house I can now remote on to the NUC situated within the home cinema room. The next step was to use the Audyssey MIC however I thought to myself this is Nexus, we may discover the Audyssey MIC has fluctuation issues amongst other things based on the previous experiences shared by the expertise of the AVRForum and OCA himself during Evo. I would also need an adapter for the NUC as the NUC I have doesn’t have a microphone socket. At this point I decided to get a UMIK-1 USB Microphone that is plug-and-play, supported/endorsed by REW and again just makes life easier; will no doubt compare UMIK-1 with the Audyssey MIC at some point later on this journey with Nexus. (In UK for £125 free next day delivery - Kalibrate Limited) I also found a USB extention cable as the UMIK-1 cable is fairly short! I am now at a point whereby I can do the simple measurements although I am still experimenting/learning! With Nexus my initial assumptions were you would really need to allocate time for measurements and with the home cinema room I am also adding a 3rd sub woofer (A 4th will come later in the journey as I am sure there will be more!) into the mix (Why not? A second sub was transformational with Evo MJ!). I have also tweaked placements of existing sub woofers recently and of any of the speakers, subs tend to be the thing I tweak/adjust placements the most! Before starting with REW / Nexus my initial thoughts were that MJ would provide the express route to testing and to ensure everything is sounding as expected - I was thinking Evo MJ would become like the smoke-test (where time is limited) prior to the REW measurements with Nexus and the allocating of time. I was ready to allow for MJ to be used for the quick test placement adjustments within an hour and then allow me time to listen and ensure all OK before moving to Nexus version with full measurements. I was so so wrong - I don’t really need MJ (Long live MJ!). Nexus / REW is actually quicker and far easier than using the Audyssey measurements process of MJ and I can easily move a sub and do a single sub measurement very quickly and remotely without waiting through all of the existing speaker measurements that Audyssey would take you through! I only need one measurement, not 3 (Mainly to get going without any align/vector av over multi measurements)! This is brilliant! Please note what I am about to say next is ONLY if you put your Mic in exactly the same position used for the complete set of speaker measurements. (I am not sure if it is recommended doing a single speaker measurement whereby Mic may end up being in a very slightly different location to what other speakers have been measured with - this is mainly as a quick test only where maybe time is limited. You would expect all speakers to be measured with MIC in the same location!) When you eventually get going, you realise that actually going forward this will be “quicker” and “easier “to make single speaker measurement adjustments using same Mic position. I do plan on moving my centre speaker slightly in the coming weeks and it will be very easy to do (Using my previous Mic position I know exactly where it is and positioned previously) although I will do a full set of re-measurements for all speakers when I have the additional time. However, this will be very handy for sub woofers, whereby I feel that either moving one of the existing two OR adding in the third WILL no doubt be quicker than MJ and the Audyssey measurement process. This is a realisation once you make the jump into REW measurements. Above I mentioned the potential assumption of the simplicity of the express route of MJ - however, I think you will quickly realise Nexus will be faster and easier long term, even doing a full set of measurements which is the recommended process to ensure all speakers are from same Mic position especially considering I only need 1 Mic measurement per speaker. One point I would say is when doing your first set of measurements for the MLP and additional couple of MIC movement positions, I save this as my original RAW measurements mdat file. (Keep this safe as its easier to grab original measurements and do the required adjustments if need be going forward) I now have a collection of mdat files and keep a log/audit. Continued ..
A point I am unsure on right now is that unlike the Audyssey MultEq App sub level process where you adjust the volume of the subs so that they sit within the green zone, I feel like that bit of logic for optimising sub volumes would be very handy here - maybe a small utility/REW process to correctly adjust? OCA do we need something like this? Before running measurements, start Nexus and generate your AVR mode .ady file for the AVR preset 1 that will be used for your measurements. Once distances/levels are all validated as zero, ensure 250hz is set for you LPF. On the AVR App, ensure you select the multi stereo option as it automatically switches to Atmos source. Now when Atmos source test clip is in play, ensure Cinema EQ is Off and anything else like Dynamic Volume “light” is off. Once settings are validated, restart your AVR by powering off altogether and restarting. Repeat your Dolby Atmos clip and ensure everything mentioned is set as expected. The AVR’s tend to have a few bugs that do not correctly set until after a power cycle restart. The experience for measuring all speakers is fairly straight forward however I did have a few attempts at doing the subs. I did find that setting the subs to directional mode and ONLY leaving one sub on at a time for the measurement provided the better results. I also found that using REW to do the LFE (sub) sweep was closer to where I expected the sub response to be (I was comparing last MJ measurements from Audyssey with new measurements as a simple guide for myself so I had confidence they were within reason and I hadn’t made any major mistakes). All measurements were done using master volume -15 and I set the REW LFE (sub) sweep at -10 or -12 provided the best results so far. Again, these are just initial tests and I will no doubt improve my tweaking as we go forward. Also you only need a single speaker measurement to be used by Nexus which allows you to get going with incredible results (Sorry I keep mentioning this but it just makes it simple and easy!) I did two Nexus runs initially and the first run was using SWx (And 10db louder) sweeps using VLC and the second using REW LFE sweeps set at -10. First test I noticed subs were -11 level output (REW also provided some warning messages) or so and you could tell when listening the bass wasn’t quite right (Better than being too loud though, leaning on caution!). After using the REW LFE sweeps set at -10, this resolved the issue however I did spot to use -12 for REW in the notes, so I will be doing this again soon. However, my second update to Preset 2 came alive - I just never expected such an improvement over MJ. It made me smile a great deal and chuckle with delight - it was simply stunning! I know I have some tweaks and improved measurements to do but right now I am up and running. Preset 1 is left as my “measurements only” mode Preset and Preset 2 my Nexus optimised sound. I will follow this up later with my listening experiences of movie scenes tested so far and will report back as there are details in sound I have never heard ever before and the clarity is unbelievable. I could not contain myself at this point. Wonderful stuff. Thanks OCA!
Thanks for sharing your Nexus journey. Which sUbwoofer measurement sweep to use is still a bit of a mystery due to quite varied feedback and you seem to have sorted it out. It's true that once you have the gist of it, Nexus is easier and can help a lot with improving your speaker/sub placement. Enjoy and do not expect this to be the end of "better than previous" scripts ;)
The only thing holding me back from using my PC as HTPC is the missing Dolby Vision support on Windows. Are you able to get Dolby Vision on your Intel NUC? 😊
As it was processing, I got an error message in red "Invalid measurement names detected" and then it repeats "aligned sum" multiple times. This stopped the process.
Hi OCA, thanks a lot for your efforts. I am so anxious to try out your settings but the resultant ady file from Nexus is not recognized by the MultiEQ android app. These are the steps that I performed. 1) Create a sample calibration file in MultiEQ editor app by measuring only three position, because 3 is the min, and created a ady file. (2) Uploaded this to Nexus for Speaker configuration. (3) Synchorized the names of the REW with the Audyssey names, (4) Generated a ady file pressin the No DynamicEQ option (5) Ran nexus forcing Small front and no sub polarity change and it completed successfully. When try to upload both of ady files (final and multieq off) to multieq editor app, it says either the file is not in the device local storage or is not proper curve file. Both of the files are on phones local storage. Please help.
So here's the thing: due to my room layout my left speaker is quite further away than my right. Should I just center the mic to the listen position and ignore the distancing stuff? Or calibrate between my center and right speaker? Because they are in more realistic positions. Does REW/A1 automatically compensate for the further distance my left speaker is at?
You have another video correcting the phase into umik calibration file. You say nothing in this video. Do you recommend using here corrected phase file? Thank you in advance!
@@ocaudiophile Is it possible to apply this adjusted calibration file to the measurements afterwards (subtract the original one from the measurements, add the new one or something) or do the measurements have to be performed again with this newly created calibration file?
@@ocaudiophile I understand the original comment here to mean that the corrected calibration file means an improvement in the measurement or its results over the original one, which would certainly optimize Nexus' calculations, or am I wrong?
OCA, thank you for this info. I can’t wait to try it on my Denon AVR. A question please. I intend to purchase mono blocks for my L-R speakers and an Eversolo A8. For TV surrounded, I should be able to feed the analog input of the Eversolo, using the Denon L-R preamp output, and still take advantage of the A1 Evo Nexus installation with Audyssey. But, when using the Eversolo to stream music or play a CD, the AVR will not even be on, so I need some correction for the speakers. Do you the think I can use the process of Convolution with Inversion you presented in an earlier video? The Eversolo has a DSP and they have instructions for installing REW files. For information, by connecting the system as I described, I only have one input into the mono blocks and will not need to manually switch inputs. I will use the 12v trigger from the Eversolo to turn the mono blocks on/off and the Eversolo can be controlled from my phone or iPad. Also, the DSP in the A8 is not on for the analog input, so, surround playback will not be affected by the Eversolo. Thank you, Mabe Hall.
When playing sweeps from file to measure SLA channel, FL channel also plays the sweep. And when playing sweep ffrom file to measure SRA, FR also plays the sweep. Its not the case for any other channel. Why this happens?
Your receiver cannot do Atmos with both surrounds and surround backs when there are also height channels probably (5.1.2?). When you are playing SLA, receiver thinks it's surround back channel (maybe you should re-define them as surrounds, not sure but this problem was solved by others in these comments) and Atmos decoder triggers FL so as to simulate sound coming from the middle (SLA). You can also disconnect FL temporarily during the sweep.
When measuring for multiple listening positions, can this new way of processing measurements allow for seating positions 4 feet away from the MLP? Or should we still stick to the Audyssey recommended 2 feet?
You can measure as far as you wish and it will produce a result and you will get a more uniform bass response overall but it will not be as good anywhere as how it could be otherwise. Unless you regularly use the larger area for listening, I would suggest sticking to measurements around MLP.
@ I appreciate the response!! Would it be worth it in that case to only measure the subwoofer and cross corr-> vector average those? Or still stick around the MLP for that Edit: I realize I misunderstood your response, for the best bass response at the MLP, sticking around there for measurements is best, got it, thanks!
@@timothypoozhikala9791 Take measurements as wide as you want, run one optimization with all of them and another one with distant ones removed and compare your results by ear.
@ocaudiophile ah got it thank you again! I just finished and can already tell a huge improvement in my atmos. Played the a quiet place 2 - scene with the bomb coming in during the baseball. Whoa!wbomb wasn't in view but I could hear it all over my head!. I need to play with the bass to make it hotter. It's a bit too low for me. Any suggestions? I've two SVS PB 200O
Hello OCA, I did one measurement without Dynamic EQ (via blueray player, with lossless files) and always used it for the new version of the script. But after the last update, I'm a little bit confused. What is the purpose of FixDynamicEQ.exe? Is it better to make measurements with Dyn EQ ON? I listen to my system mostly at night, but I always try increasing the volume for reference level, mean -30db on AVR. That should be the volume at which the AVR stops editing curve by EQ when DynEQ is enabled. It will make a sense for me to do measurements with DEQ ON? and use the SW uploaded by new ver. Nexus 2.3? Or it is still the best and easiest way to measure, with Dyn.EQ off on the volume lvl, which I prefer to be a calibrated? For me 80db. Mentioned by script [IMPORTANT] Final target level optimized for minimum total volume step deviation per speaker and maximum overall adjustment flexibility: 79.99dB Maybe a idea, to make a new video, or some documentation ,where you can compare the calibration with vs without Dyn EQ. If that make any sense. thx.
DEQ on measurements are identical to DEQ off ones at the measured AVR volume level. If you regularly listen also below that level then DEQ on measurements will make sense. They are better at lower volumes. FixDEQ fixes the problem with DEQ which is too much surround/height boosting at lower volumes.
@@ocaudiophile So do i run this while hearing to music or watching a movie with DEQ On?, or does it fix my ady after nexus created it and then update it on the VCR?
Can you clarify what mode the AVR should be in when taking my initial REW measurements? When I press the "Pure" button on my remote there are two options: - Auto (which switches to Dolby Atmos when I play the sweeps in VLC, and shows the Audyssey icon on the display) - Direct (which still uses the Atmos speakers but does not show the Audyssey icon) Based on your post on the AVSForum I assume I want Auto, since we want to correct against the mode I will be listening in (I never use pure direct), and when using the cleaned .ady file Audyssey is probably doing very little. I also assume if we were using Direct mode there would be no need for the cleaned .ady file since Audyssey is disabled. My only concern is that even while using the cleaned .ady file, my speakers still seem to have some crossover, and I can see my sub active when playing sweeps on my other speakers. Is this expected? I thought the rew mode .ady file was supposed to disable crossovers.
@@ocaudiophile Ok, sounds like I am on the the right track. When I transfer the REW mode .ady file the Audyssey option on the AVR's web interface is grayed out and I can't click on it to see what mode its in, but I can see from the front display that it is on. Do you know why my subwoofer would still be active while playing other sweeps? Is that expected?
I know this video indicated 500 for maximum measurements. I notice mine has a ceiling of 300. Is this what others are seeing or is there something I need to adjust to have the 500 like you have mentioned in the beginning of the video at 1:30.
I have just stumbled upon this video and WOW i can't wait to try it, amazing work. If i am using a mini DSP to tune my 3 subs how do i go about running this calibration? Do i leave my current HC/Time alien etc in the Mini DSP and run this over the top? Thanks.
@@ocaudiophilecool thanks. One other question ref the Center measurements, do you take a mic Center measurement for every speaker then align each speaker or do you just take one initially and align each speaker to a single measurement.?
What is the advantage of measuring at the volume you normally watch movies in comparison to the audyssey measurement (I believe this is at 75db?) I listen at -16db at my Denon.
Dynamic EQ calibration for the first time and it's gonna take some getting used to, quite louder than ive gotten used to. I did see a discrepancy from past evo/maestro where my TML and TMR were set +3dB different where theyre usually set the same level. TML sounded way louder so I changed levels to match and it seemed to blend better after that.
I have a question on the sweeps. from the video, it seem you took the measurement for FR using the file. Is that how I do it for my speakers because I don't have atmos speakers.
@@ocaudiophile I see. thanks. Also, on center the microphone. How would that work if I need to measure from 6 different listening positions for the 5.1 setup? Do I need to center the microphone between the FL and FR for each listening position?
OCA, thank you so much for putting this out. One thing I'm seeing is that REW Sweeps from files are significantly louder than the sweeps run through REW itself. I'm finding that I have to turn my AVR was down when playing those. What should the SPL of the Sweep files be when I am running them?
It's because they have 0dBFS volume level vs RE's default -12dBFS. These sweeps don't play loud in certain receiver models so were made louder. It's useful to take loud measurements.
@@ocaudiophile Okay, thank you for taking the time to respond. I really appreciate it. One other question. I have four subs in my room, but my Denon receiver only has two subs. Should I combine them into one sub via the MiniDSP, Or, will the Evo script combine them into one sub for me?
You will need MiniDSP if you don't have 4 sub outputs in the AVR (it's possible to use a y-cable and connect 4 subs as pairs directly to the AVR but the results would be varied). You can measure each of your 4 subs in REW and feed that to Nexus to get optimized distance and volume level settings for all 4 subs and then apply these settings in MiniDSP. Then measure all that as one single sub and re-run Nexus with it.
Hi, Oca! I'm writing through a translator, sorry for the wrong language if anything. I'm doing hybrid calibration. I take the calibration of the odyssey by 8 points. I insert it into maestroMJ to get an archive with measurements for REW. Next, I insert them into the REW by deleting all dimensions except those that the name ends in "o" (for example, SLAo, SRAo), and then rename them by removing them from the name "o" (for example, SLA, SRA). It remains to work with subwoofers as there is SWMIXo. In theory, I should change the name to SW1. And send it to the Nexus. But what if there are physically two or more subwoofers in the system? Is there any tool that swmix can divide into sw1 and sw2?
@@ocaudiophile Constant errors during measurements: pure measurement signal to noise, click adjustment too large, high measurement distortion, etc. Even if you ignore all these errors, the script already gives an error on both subwoofers: sw1/sw2 volume is too high by AT LEAST 8.5dB, will have to be set to -12dB (hardware limit) and final results will be compromised. And also in the final file exposes crossovers to the fronts either full range if large, or 40 Hz if small. And my passport fronts play from 60Hz at -12dB.
Hi OCA! Thanks for everitinhg! :) I am using the Nexus v1.9, for the subwoofer REW sweeps, but I get the info "The measurement signal-to-noise is low 12,6 dB. Increasing the Sweep level may help." My receiver is at the -15dB, which is the my average audition level, and the SWs are on their "normal" level that was base for the Audyssey original measurements. What should I do to be able able to increased the REW sweep levels for the SWs measurements without jeopardizing the remaining speakers' measurements with the "Dolby Atmos REW measurement sweeps" levels?
@@ocaudiophile just to give feedback on my test: I got no errors on the Nexus 1.9 log, but the file in the Audyssey app appeared as a "corrupted file". I used the same REW measurements in the v1.8 and everything went ok smoothly. The speaker distances were set more according with the true measures (v1.9 gives smaller distances) and the sound was great. Maybe I can send you the REW measures for your testing ;) Best! :)
I Dont know why, but i get thru the whole optimisation process. But it is getting stuck at: Optimizing EQ filters and generating expected final outputs in REW for each channel... I tried it on different machines and multiple times. Always the same result.
Did you ever find a fix for this? I've tried on two different machines with two different browsers and mine gets stuck at the end when I believe it is supposed to create an ady file. But no luck so far.
@@roughnek201 yea i did fix it. I fucked up by not installing the beta of rew first. When i installed the beta it reset some settings. Most importantly the one for maximum measurements. Do make sure u set it to 500. 30 safed measurements are not enough for the script to work. After i changed that it ran flawlessly
@@bulletfaceLP Yeah, the software developer told me to uninstall, delete preferences and reinstall. I'm going to see if maybe taking that as well as the production version off of my machine clears the error.
Did I understand it correct that you have to manually sort, cross-correlation align and vector average your measurements before starting the optimization? Didn't Maestro do that automatically? 😊
@@gbye007 I see. But that sequence of procedures is what takes time. A lot of time. Would be great if you could just take the measurements, name them and let Nexus take it from there.
I got to the "waiting for timed reference" at the point where you calibrate the mic distance and it just kind of waits. I don't really know what I am doing wrong. I am excited to get this to work.
Hello there. A question about measuring the two subwoofers. Do I just unplug or turn off the one, that I will measure second? Or how am I supposed to measure the both of them correctly? Thank you in advance!
Hello OCA - With black Friday around the corner, do you think it would be a worth it to purchase a Dirac license with full bass control? My system has never sounded better but i still struggle with bass control and was thinking of purchasing the license from Dirac. - Thanks
I have Dirac Live Bass Control and Audyssey XT32. Compared to Nexus... DLBC and XT32 are a pile of s**t. I always had problem finding the right filters for my L-shape room but with the last silent updates of Nexus it got better and better. With the last silent update some days ago, my system finally got at its best without knowing what have changed in detail but who cares^^. Please save your money and invest these euros in this project. Probably Active Room Treatment might be a game changer but worthwhile Nexus is the best that is out there. BY FAR. FAAAAAAR. :)
I have a more general question. How does something like this integrate with using a minidsp 2x4 to use Bass eq? Would you just run calibration independent of subwoofers then calibrate with the DSP after, or allow the subs to be calibrated in REW and sent to the ADY file? This is probably niche so no worries if there isn’t info on that!
Hi, great job. I have 2 subwoofers and my receiver has two subwoofer preamp outputs. If I have a miniDSP, can I further improve the calibration with some procedure or is the subwoofer calibration sufficient with this script?
Question regarding the REW measurement. Using your new losless sweeps in REW, do i stick to change the db to 0 in the measurement settings of REW, or at -12. And measuring one Subwoofer, the same with the sweep, and also 0-24.000 or 0 to 240hz?
@@ocaudiophile Got it, you are reffering to the screenshot in the changelog? And for the sweeps, when do i use, or difference, between the height speaker and Dolby speaker sweeps?
Hi @oca! Just being done with REW measurement and Nexus processing, everything went very well. Just a few remarks and questions. In generel, i did a measurement with DEQOn, and my SPL level i made at -25db (which i also stated as Nexus asked me). 1. Subwoofer is set to -10db, which seems a bit low. I used the Standard Atmos sweep, not the +10db one. Should i use the other? 2. Script says that " 120Hz - set 'LPF for LFE' to 250Hz in the AVR for better LFE channel output! Sub is also not suitable for speaker crossovers above 120Hz", but also says to change to "LFE+Mains with 110hz on BEL. How does both match, because i only know where to change LFe+Main with Bel 110hz. 3. Not sure what to make with this message: "Limiting search frequency to avoid bass localization due to asymmetry due to odd number of subwoofers in the system!" I am just using one Subwoofer, which i named "SW1". This was created from 4 SW measurments and then Vector Average. Thank you!
1. Stick with -10dB (SWx.mlp) sweep if the resulting bass sounds fine. 2. The two are different settings at different places in the AVR menu. Do exactly as the warning prompts say. 3. Use "uncap subwoofer lpf" since you have in fact 4 subs.
Resulting bass is a bit low for my taste, so i think testing other target curves? In only have "lpf for LFE", so i guess 250hz would be right. Denon x3600 doesnt have two optiona for lfe.
Question sir! Apologies if I've asked this before - we've had too many conversations across too many videos and forums for me to remember or track everything down. If one was not happy with the end result of cross correlation alignment - it was trying to line, say, a second peak up with the first peak of the other measurements, and it is 100% sure it is right, and no matter how many times you click it, it is not moving it any further - is there any way to manually give it a bump in the right direction, or even line it up by hand? I've tried the Alignment tool and it has no effect on the data displayed in the Impulse overlay. I also tried a couple other random things and they too didn't help. Thanks!!!
Are you using the latest REW Beta? I think with Beta 60 cross corr align has improved in that respect. If you are getting wrong alignment even with the latest REW then select the MLP measurement and the problem measurement in Overlays/Impulse tab. Right click on the problem measurement and select "Offset t=0". You can then manually align the speaker's real impulse peak with the MLP position in the pop up window that opens. You can use cursor keys and even enter the offset required in the box in milliseconds.
@@ocaudiophile Awesome, thanks!! I was using Beta 58, but while it was struggling to align I read the latest release notes and saw the improvement in Beta 60, so I stopped everything, installed that and started again. It's still struggling with the same one 😞 ... sadly my ex won't let me install treatments in her basement for the home theatre I built for my son, so some of the reflections are very bad lol Thank you sir!!
@@ocaudiophile Hrm, follow-up needed it seems! I can see why it's having problems, this makes no sense at all, and when you get a couple peaks lined up, several others look like they don't match up with ANYTHING. Would the smartest move here be to just throw this one away for just this speaker? Or the whole set from that position? I know taking the measurements again would be the absolute best solution, but I'm only there once a week and can't spend hours taking measurements every time I visit him 😕 ... just have to make due with what I've got.
I think you're missing an important step I can't figure out. At 39:51 you load measurement file into Nexus, but HOW to do save your REW measurements / export them into .ady file before you load them in? Rew saves them in .mdat format. I can't figure out that step of rew file export into .ady file. Thanks! Or, do you just upload the sample perfect speaker with DEQ On file (same one you sent to AVR in the beginning of the video?) and optimize that with REW open that has cross-correlated measurements we just did? Please clarify
At the end Nexus will create the optimized final ady file from the measurements in REW. That's the one you need to transfer to your receiver for optimal settings. The first ady you transfer only helps to set your reciever for taking REW measurements.
@@ocaudiophile I think I understand now. It's the "perfect speaker +DEQ on" blank measurement sample file that we send to AVR in PART I of the video. That's what I chose in "upload sample calibration" as a file. Anyways, ran the first set of optimization. It's asking me to reverse POLARITY of my sub. Few questions: 1. Is that the same as flipping my sub phase from "0" to "180" degrees? I never had subs it in "180" position, but it's a brand new sub I got (Klipsch RP-1400SW). 2. The second thing Nexus is asking is to set sub at 250 from 120. Should I do that? 3. If I do change polarity (phase?) and set frequency to 250 after optimization, do I have to then re-run measurements with those changed settings and redo optimization? Thank you!
1. Yes 2. Normally yes but there's a possibility your used the older SWx.mlp sweeps for measuring your subs and they had a 120Hz lowpass filter in them. Only since yesterday the subwoofer sweeps are correct. If you are using .mpr sweeps, their SWx sweeps all have that 120Hz filter (it can't be removed from them) then better use REW's internal sweep for measuring your subs. The instructions for that are in the changelog . You need to measure your sub without any lowpass filter applied (requires REW measurement mode" ady to be transferred to the AVR and also set the AVR submode to LFE for sub measurement). Then NExus will check where is your sub's real lowpass filter and prompt for correct settings.
@@ocaudiophile So, I remeasured my sub with REW internal sweeps as detailed in your latest changelog and re-ran optimization. STILL, for some reason it continues to say: "WARNING: 120Hz - set "LPF for LFE" to 250Hz in the AVR for better LFE channel output! Sub is also not suitable for speaker crossover above 120Hz" and still asking me to switch phase from "0" to 180 (which I'll do). I keep reading everywhere that LPF for LFE should always be set to 120. I'm confused.
@@gr8nrg187 That's not an error or a problem. It's just asking you to set your LPF for LFE to 250Hz for better LFE response based on your sub-woofer's characteristics. Polarity inversion is also something Nexus cannot do so asking you to do it. Orange prompts are for tasks, user needs to do manually. If your sub don't have polarity (phase) inversion switch, you can select "No sub inversion" option before running Nexus.
Hi. Thanks for sharing your amazing work! One question: If I do the measurements through REW and then use A1 evo, does it make the difference between Audyssey versions(MULTEQ, XT and XT32) basically obsolete? It would seem that the version differences only apply to the measurements.
Non Audyssey system: OCA: I've seen in other posts that you can force an ADY file to look like a 2.1 system for example; and that you could then run Nexus and take the volume and distance settings to manually input into your non-Audyssey receiver/stereo. My question is regrading the EQ settings which I know you said would be v tricky! Would there be anyway of extracting them out of REW once Nexus has run and inputting into a convolution file for use in Roon or JRiver? That would be a great workaround for more manual audio systems using these high res players. Just a thought 🙂 Thanks Kevin
Great, thanks. I’ll give it a go. I was also thinking of trying it out on my car stereo system for fun; but my Helix DSP can only process PEQ entered manually, so it I’m presuming it won’t work as there will be too many EQ points in REW/Nexus?
Hey, first thank you for your work, I appreciate it very much. I have a question about the LFE+Main setting. Nexus recommends to set my AVR to LFE+Main. The sound is very boomy when listening to music. I lowered the sub by 5db (from -0,5 to -5,5), this is much better. Do you have any suggestions? Wrong measurement or just stick to what my ears says?
A question about the mic calibration file. I have to use the audyssey mic. Set Rew to Java, then to excl. but rew mentioned that you have to upload a calibration file of the mic. Anywhere I can find this? Denon 3800
I got a UMIK-1 mic for Christmas. I just finished watching parts 1 & 2 and am overwhelmed! I need a simpler video on how to use my mic and REW so I can create the files and use NEURON. For now, I will create a new ADY file using my Marantz SR8015 Audyssey mic. Its going to take a few more views of part 2 before I can figure out how to use REW and mu UMIK-1 to calibrate my system.
@@ocaudiophile so I ran the batch file and see option 5 for automated calibration. I only have one sub, in a 5.1.4 configuration. I will connect my PC HDMI port to my Marantz SR8015 and the UMIK-1 to the PC USB port. Is this all I need to do before starting option 5? Or is there anything else I need to do? Thanks in advance for your help.
Thanks again for your effort and work! I have three questions: 1. At which volume should i measure? I am listening on absolute value around 45-50. I ve never used the relative scale. Is it linear to absolute? everything above -30db is so loud in my living room. 2. why is LFE sweep -10db and not -12dbfs? what is the difference? on the mkv bluray sweep file the subwoofer is fairly quiet . 2. It is easier to use your bluray mkv sweep file. I dont have to connect hdmi. But should i still use the SW Sweep from REW then? If yes, i dont get the purpose of the file tbh.
1. The level you listen is the ideal measurement level for you, so stick with MV50 (that's -30 relative scale and equals 75dB). If you add dynamic EQ, will be a bit louder than usual. 2. LFE channel is boosted by 10dB in movies by Dolby decoder,. That's compensating for that.
@@ocaudiophile the LFE doesn’t feel so loud like the bass frequencies of my large front speakers. But maybe I am wrong. As a young father I didn’t have so much time to spend on it yesterday. Will do it again. Do you know what the timing issue ppm means? Is my laptop to slow. Never got that error/warning when I used my powerful desktop machine
@@Squizzy911 Yes something in the lines causing excessive latency, try switching to ASIO4All, little less user friendly but works like a clock once set up correctly. If you have more than one sub, wait ffor Nexus 2.0 for better bass, I am fixing some bugs related to multiple subs.
@@ocaudiophile i dont have multiple ones. I am glad that my wife allowed me to use a 5.1.2 setup. But a second sub would be too much i guess :D and at the Moment i try to get the best out of my Budget teufel ultima Set 😅
Hey OCA, I've already asked this at AVS, but the question probably got lost in the general anticipation for Nexus :) For users with TS/CH speakers: In order to be able to play the sweeps on these speakers, would it be possible if I take the sweep from e.g. FHL (or any other speaker except FR) by simply rerouting the cable from the preamp to the power amp accordingly? Thank u so much :D
Cable routing works but timing information will be wrong, needs to be manually fixed. You should be able to play TS by TML & TMR and CH by FHL FHR sweeps though?
@CorbyPage I remember that problem the days when I used to switch banana plugs before the atmos sweeps. But when I think about it, I think you're right ;)
@@ocaudiophile Hi OCA, Those that say Top when you configure the receiver as atmos are heard in height, either Front or Back, but on the sides, never in TS or CH. In any other configuration (including Auro 3d), the top files sound in the surround channel.
Spent half of the last night of watching a tutorial and taking my measurements. Went to the office with red eyes :) I will do more after calibration measurements later, but I wanted to ask why it sets my both subs -8 db lower than MultEQ and A1 Maestro? I do have two SVS SB-3000 and their level is set to -17 db and -19 db, basically right in the middle of MultEQ XT scale during Audyssey calibration.
Does it sound 8dB lower, or too quiet in general? When messing with MSO a while back, I noticed Maestro started setting my subs lower. Still, they sound just as loud, if not louder. Volume knobs remain the same. I assume maybe since MSO cleared up lots of the nulls and dips, Maestro maybe had to boost less to achieve the same perceived loudness. Maybe Nexus was able to align your subs so much better than Maestro, that it was able to reduce the trim on the subs by 8dB and still maintain target levels?
Nexus has a quite different volume alignment algorithm and then there's anti Audyssey auto-leveling added to each speaker/sub volume. Each setup is unique, don't get stuck with figures as mentioned below, listen to your system first.
Yes, you can hear it. That's how I noticed it in the first place. In the beginning I thought that I forgot to turn on my subs after measurements. There was no bass at all. I increased those values after calibration and now it's back.
@@dovydasvilkelis6881 Not sure if this helps, but my first try with Nexus 1.0 and original sweeps gave me a SW1 and SW2 at - 6 dB, normally all EVO versions after 1.3x has been around + 2dB. In other words not much bass there. So yesterday I redid measurements, same as before, 3 measurements pr speaker without moving mic. But yesterday I used Nexus 1.1 and the new trueHD sweeps. And in the ASIO4all setting ticked the always up sample to 48kHz box (did this since REW gave warning about sample rate, don't know why, it didn't the day before). Results were SW1 and SW2 back to + 2dB and great bass again. Not sure what did the trick or what happened the first time. But maybe you just need a second attempt.
I redid all my measurements with latest Atmos sweeps. 3 measurements per speaker per position (99 measurements). I ran Nexus 1.7 and now it sets SW levels exactly 8 db higher, so I guess it was something with either my previous measurements or a first script version. Thank you for the help. I'm just not sure why some Nexus versions ask me to change SW1 polarity and others ask to leave it as it is. If I do it, I have a big drop in bass region, it looks like SW cancels out each other? Not a big problem, just curious :)
Hi OCA, hi people, if you measure with the AISO4ALL and the provided sweeps, do you use the +10db SW sweep or the +0 dB SW sweep for the measurement? Thanks in advance. Very much appreciated.
I'm stuck at the mic centering part. The right speaker is my reference. When I move the mic and test the left speaker measurement, it shows the same distance no matter where I place the mic. I ran multiple left speaker measurements and they are very similar. I am using the audyssey mic and the denon avr-x1700h. Im losing my mind. Dont know what the problem is and why i cant seem to center the mic.
I have an insane amount of extra bass with Nexus. I must be doing something wrong as the final calibration trims subs to +8. I have 4 subs through MiniDSP and reduce the gain through dsp during Audyssey app cal to green zone. Bass is even louder in non DEQ version. Any ideas what I’m doing wrong? On a positive note, my bed layer and ceiling speakers seem much more time aligned with much better continuity. I think once I dial in the bass this will be substantially better than Multeq-X. Thanks to OCA for surpassing what a large company can do!
@@bschalker Yes, I just followed OCA’s suggestion to use the +10db SW sweep and we’re good now. I don’t think I’ve made any minor adjustments to the SW trim to suit my taste either.
Question OCA: 1) Per the video instructions, how come the center channel is not measured? 2) I have 2 subs, do I use the same SWx.mlp to sweep for both sub by isolating and testing 1 sub at a time? How about the naming convention for the subs? SW1 and SW2? Thanks
@@ocaudiophileI'm getting error "unmatched speakers were found: in uploaded calibration file (. Ady): C.. I ignored this since in REW measurement, per the video instruction, we don't measure center. It then started calibration and stuck under "calculating average target volume level at listening position". More than 15 mins, and no reaction in REW. Any tips?
@@vick REW measurements will only override subwoofer configuration in the uploaded ady file. Error tells you you have a center speaker in the uploaded file but don't have any measurements for it in REW. Speaker configuration in the ady file should be identical to what is in REW.
@@ocaudiophile any suggestions to circumvent the center channel error I'm getting? My .ady file has center (isn't everyone's AVR the same)? Or do I just make a center channel measurement in rew to not have the error? I followed your instructions to the "T".
To start with thank you for all the hard work you put in to this! I have a question though. After running nexus some of my speakers are crossed over below their spec sheets minimum Hz range. Should this be adapted after Nexus ran? E.g. center channel is 40hz where datasheet says 90hz Dolby atmos reflekt speakers are set to 100hz where datasheet says 150hz. Can you give a bit more explenation on this? "Above crossover settings are calculated to be optimal. If you wish to change them, use speaker XO customization tables inside the script." Please advice, tomorrow I will test the results.
Room gain is added to your speakers and Nexus shows where their bass roll off starts in your room. If you want to change the crossovers, do it by customizing the script. There're instructions in Evo Maestro logs on how to do that or you can read the comment lines in the script.
@@ocaudiophile worked like a charm, want to be sure that outputted stuff is not distorted by exceeding speaker specs. Will be testing later today. thank you so much
@@ocaudiophile after Nexus has ran, and I set my LPF for LFE to 250 and Front (full range) to 250 as Nexus says.. What setting should i set under audyssey=>MultiEQ XT32 => Reference, flat, off, bypass L/R, .. Also, I find the LFE effects are a bit on the underwhelming side... what is the best solution to correct this without losing balance. (Denon AVC-3700H) Please advice. The overall sound on the plane and Atmos is already night and day. Expect a contribution for your hard work.🙏
@@siberteeckhoudt9932 Audyssey should always be set to reference (the optimized ady file already does that for you). You can increase the volume of the LFE channel if it's not already at 0dB. If it is, then just increase sub volume as much as you want.
@@ocaudiophile now running the 10db curve and that set my Subbs at -2 -8 which I set to 0 and -6 now. running dual Teufel S6000SW in THX mode. with ultima40 front, centre and ultima 20 for surround and surround back, reflekt for atmos. 7.2.4 in other words. Is it normal that I have to screw the bass up that much to get some feelable impact of the subs. e.g. fly over at beginning of TopGun Mavrick (bluray). These subbs are supposed to be already a bit of overkill for my 6x3m setup in the livingroom which is larger than the setup floorplan. wondering if the LPF for LFE and Front (large) both set to 250Hz might be the cause ? I find the Harman Kardon curve overall more pleasing to the ear, especially for music, but lacking bass even more for Atmos movies. Please advise me on this one last query.
Hello OCA! What great work you have done with all the evolutions of A1 / Nexus - bravo! Exploiting the full potential of our AV gear is exiting and makes so much sense. I have a question in relation to your recommendations re. MiniDSP - you advise us not to use this, as it introduces too much delay in the sub channel(s). In my case I have the Denon AVR-X4400 with two sub outputs, running my 5.4.4 speaker setup, the subs through a MiniDSP. With four subs and only two sub outputs from the AVR, how do you propose to align the subs? Previously, I have used MSO to align the subs via MiniDSP, and then run A1 / Nexus set to one sub, treating the aligned 4 subs as one sub. Many thanks in advance for your inputs 🙏
In the case you have 4 subs and a receiver with only 2 sub outs, best option is to use the MiniDSP. Just make sure you use max 5-10ms delay between subs in MSO for optimization.
In the video you are using 256kMeasSweep_0_to_24000_0_dBFS_48k_Float_L_refR, but in the Drive folder we got 256kMeasSweep_0_to_24000_-12_dBFS_48k_Float_R_refL. It's -12dBFS and FloatR_refL, not 0dBFS and FloatL_refR. Can you help me with this problem?
You are right, they were changed after the video but YT doesn't let you edit videos. Use -12dB with comfort and FL as reference. The sweeps are now set that way. Also don't forget to try the new Neuron with your REW measurements.
@ocaudiophile I measured my system with Rew for the first time, and I got weird results in Neuron. After watching your video multiple times I finally got the source of my problems. I was using the new sweep file with the old settings. Thanks!
Hi OCA! Thanks so much for this. I recall, from past tutorials from you, that we can use the center speaker (when available) to align distances and calibrations in REW. For that one should choose "C" instead of "FL" or "FR"?
Great Work! One question regarding measurement DEQ ady file, for some reason my subwoofer is set to -12dB level, surrounds and center have crossover at 40hz(not full speakers). I've manually set them to full, but do I need to set subwoofer to 0dB or keep it -12dB? I have Denon AVR-X2800H if that helps.
@@ocaudiophile sorry for confusion, I've meant that settings set by "REW measurement mode file (.ady) w/Dynamic EQ ON" have SW volume -12dB and crossovers 40Hz for center and surrounds. In your part 1 video you showed that those REW measurement settings should be all on Full Speaker mode and that should be set automatically by REW measurement .ady file. I've manually changed all speakers to full size, but I'm not sure about SW volume level for REW measurement, it should be 0dB or -12dB in AVR?
@@ocaudiophileI've used REW measurement mode ady file, but I have strange bug in my receiver that any .ady file doesn't set correct level for SW, any other channel is correct.
Moreover yesterday I've run Maestro, it calculated SW volume: [IMPORTANT] Subwoofer - applied adjustment: 6.5dB. But in generated manualREW_20241002_2026_A1Evo_Nexus_1_2.ady the customLevel for SW1 is: "customLevel": "3.0" I've manually adjusted from 3dB to 6.5dB for SW1 in AVR and the balance is now perfect. Should the "Subwoofer - applied adjustment" logged by Maestro be identical as "customLevel" in .ady file generated? Thank you in advance:)
would this calibration be sufficient using only the base MultEQ, not XT or XT32? I do have a miniDSP for subs and external DSPs for other speakers if required, since I'm worried the MultEQ base version doesn't have enough power compared to XT and higher.
If you have multiple subs, I guess you cannot connect them directly to your receiver with base MultEQ anyway so MiniDSP should stay in the chain. Make sure, you don't use long delay values in it between subs.
Does it matter to the script that the time reference for your vlc files is playing out of the front left for me? You always mention its front right in the video.
Thanks @ocaudiophile, another leap forward. A process question to confirm measuring multiple subwoofers. After loading the new base .ady config file from Nexus (zero values) - 3800h. I used REW pink random noise Sub Cal SW1 then SW2 (30 to 80 Hz) and then Speaker Cal on FL (500 to 2000 hz) to make sure all levels were the same (75dB), Then identified the center mic position and performed 3 test sets. Nexus script completed with no errors.. House Curve used was the standard HK file as per zip file. Nexus set the SW1 and SW2 at +3db, LFE + Main 250hz. Bass is present but not dominating, vocals are crystal clear. Did I understand the process correctly?. Just checking I understand...
Hi OCA, I have some questions, hope you can help. 1. Is it thinkable to change the workflow like that. YOu take one set of Reference Positon Measurements and then combine them with Moving Mic measurements? 2. I am not able to get my Front speakers to small, as the delay of my Subwoofer array seems to big for Audyssey to correct. That´s a real disadvantage as I run 8 * 18 inches in a SBA and my fronts "only" have 1 15 inch woofer. So I loose alot of headroom here.. Is it possible to lower the set delays for the front (unitl it still can be matched with the closer surrounds), but that would free more delay time for the sub.. what is the max Delay audyssey can handle? 2. I changed the upper frequency limits in the script to 20.000 Hz, allowed 10db boosts, allowed high / low shelf filters, but at the end it is not possible to reach my set target curve. The upper frequency range shown after the optimization in REW always is some db over the target and it also does not quite match at other ranges. Can you tell the reason for that? Is it somehow possible to integrate manually created inverse filters from REW in the process and that these get transferred in to the finaly ADY in the "customerTargetCurvePoints" in all the channels? I really would like to have the option for a real fullrange correction matching my Target curves, that would be great.. Thanx alot
MMM measurements don't contain phase information which makes them unusable for Evo. The available delay is limited by hardware, nothing Evo can do, you need to find a way to remove filters/wifi dongle etc from your subwoofer's path to improve its latency Evo limits HF EQ at 1000Hz even if customized to go higher. The default 282Hz will result in the best sound you will hear among all others, trust me, just fix your sub delay.
@@ocaudiophile Hi, I changed that limit everywhere I was able to find it in the script. Zeile 473: let endFrequency = 20000;// End frequency for amplitude correction filters (max. 20000Hz) Zeile 1205: endFrequency: endFrequency, Zeile 1218: if (endFrequency > 1000) (endFrequency = 20000); Zeile 1219: endFrequency > 300 ? smoothing = "Var" : smoothing = "None"; Zeile 1725: endFrequency: endFrequency, Zeile 1737: endFrequency > 300 ? smoothing = "Var" : smoothing = "None"; Why are you so sure that 282 will result in best sound? What if my speaker for any reason has 5 db to much in high frequency and I find that annoying? Audyssey out of the box or any other room correction system can fix that. I know that correction of High Frequencies can be an issue, but would be great to get the option at least. For my Subs, I have nothing in the signal path here, these are passive subs just hooked to amplifiers. According to time reference the impulse peak of the SW is 0,53 m away (later) then my FR e.g... So why this cannot be corrected?
Hi OCA, do we have to center the microphone before taking measurements? The reason I am asking is that my MLP is currently not centered between FR and LR. So I am wondering if it makes sense to measure by setting mic on MLP, which will not be centered OR put mic between two seats which will be centered between mains.
@@ocaudiophile ok. Thank you. Have a four seats and MLP is the 2nd seat. Currently, the FR and. FL distance measured from this seat is 13.1 and 13.6 respectively. Would that make a huge difference in sound if measured from MLP as you mentioned?
When I say the sound from Nexus has progressed to another level over MJ, it really, really has; way beyond. I have yet to use the Audyssey MIC, only the UMKI-1. Straight away the noticeable difference over MJ is so obvious, the clarity, precision, detail, soundstage blending, bubble and dynamics are way beyond MJ. Bass is integrated perfectly and provides the exact type of bass Iw as hoping for.
I have been through my test scenes from various movies Quiet Place 1 and 2, Barbie, Ready Player One, Top Gun Maverick, Fall Guy and Baby Driver.
So firstly clarity. It is exceptional. I noticed the dialogue with Nexus is so crystal clear and slightly higher in volume? Way clearer than MJ and very impressive. It was our first noticeable difference when listening to the split screen telephone conversation in Fall Guy. This scene is also really good to gauge panning of the sound over all front 3 channels (LCR) and no surprise here the sound is excellent. You cannot tell its coming from the L, C or R, its so good; seamless over the whole front. This was one of my biggest surprises with Nexus, the front sound stage blends and pans over all speakers so, so well; wonderful stuff. You should be proud of this alone!
Next the precision and detail. On QP2 during the scene when they are carrying the baby in a box from the tunnel to the safe industrial unit, you can hear extra and precise detail from the burning flames and then when she catches her bag on the wired fence. I have never heard the bag catch so detailed and accurate, you hear litterally hear the scraping of the leather; its awesome (if I pin dropped you would hear it; my word its unreal!). Far more effects are heard throughout this scene than before, the sound of crickets outside is way more obvious and detailed and I especially love the bit when the girl uses the microphone to invoke feedback on the speaker, bass integrates so well and the precise detail/clarity here is outstanding (Blows MJ out of the water!). As they progress, the creature chases them through the warehouse and its here that Nexus does it for me. You can hear every barrel the creature is knocking/moving and rolling out of the way, the height channels seamless with the subs creating such an unreal depth of atmos bubble. Every single movement, tap, knock, scrape, screech, bang is precision perfect!
So far I am using Dirac Harman Curve 8db and aligned with centre as I am finding the precision detail for some movies in QP a little better than LFE+Main; I will come back to this as I am loving both (its really hard to decide!).
Using the same config/setup I then move on to ready player one and again detail is so precise, crystal clear, its as if a filter has been removed from MJ to allow the sound to be cleaner, enhancing clarity and dynamics. The hand punches on ceiling of car, the coins and then kong jumping around; my word it is incredible. How did this get better than MJ, was it all Nexus OR did the UMKI-1 play a part also? I cannot stress how detailed, clean, precise and spacious Nexus has made this Atmos bubble; seriously if you have not tried this please go and do this NOW!!
I am now on to the final straight with top Gun Mavarick and here I push the volume up to see how the configuration with Nexus plays out. I can really push the sound way, way up and even though its loud, you can hear everything so, so well; no distortion or over the top loudness. Just pure class. It feels like Nexus has finally unleashed my Cinema 40! With Barbie, its mainly for the dialogue and highs/treble, as the range of voices is great and the music, backing singers all given the enhanced experience of clarity and detail. The family think I am mad as I repeat the same tests over and over but I guess its the only way you would notice any difference?
baby Driver and the scrap yard scene where we have music, detail and then transition to dialogue is where I compare align with centre and LFE+Main. They both have very close qualities and LFE+Main might just edge for the music and bass part however aligning with centre may just edge for the detail and dialogue focus of movies where dialogue is the key bit/type of movie. For example, Rivals on Disney Plus, LFE+Main rocked the various music throughout that whole series and I highly recommend a watch and especially a listen!
I was very surprised to hear such differences moving from MJ. I wasn’t expecting such obvious enhancements. Incredible work Serko and appreciated as ever. How can we get clarity, detail or dynamic spacious Atmos bubbles with such wonderfully integrated bass better than this? It really is that good and I mean that good.
At this point I am hearing the applause from the conductor test clip ;-)
I'm still enjoying how well MJ worked better than prior Evo1 releases, so it's hard to imagine Nexus being that much clearer, as you've nicely describe. It is a wonder as to what makes such a difference with Nexus. MJ runs off the measurements through Audyssey, using a lot of them (8 measurements) with unknown quality having no way to review them.
I'm curious, what was your process with recordings for Nexus? How many mic positions; how far apart; did you review each to trash noisy traces; etc.
@@andrew81818 completely understand where you are coming from. I kept this really, really simple. Single measurement for each speaker using UMIK-1 using the VLC sweeps for all except LFE (In my MLP). I run 5.2.4. I used REW for the LFE sweeps switching one sub on and other sub off (vice versa). After having a single measurement for each, I just run Nexus. I did spend a little while getting the bass/subs correct. I found that REW LFE with -10 checkbox enabled and setting -8.00 db in REW provided the best results (I mean it sounds great!). My sub output levels became +1.5 and -1 as a result after uploading. the .ady file (Make sure you completely power off/cycle after upload!). That was it. I have yet to listen to multiple measurements per speaker doing the cross correlate/vector average; mainly to keep it simple and to just become familiar with the process/my setup etc although I am experimenting with this now. The difference is night and day with MJ seriously. I didn't expect it to be this way, I was very, very surprised. This is with Nexus defaults also.
@@DigitalKirkley Thanks for the info. I'd be interested to hear how things turn out after you've tried multiple measurements. I am wondering if having more measures (vector average) may actually hurt, not help. One clean recording (per channel) may be all you need for Nexus, since it filters only the bass.
I'm curious if Nexus (vs MJ) may perform worse off-axis though (non MLP) - perhaps less uniform (flat) across frequencies by over correcting for the single point in the room?
curious to know what target curve did you use? there are so many to choose from!
@@anktry203 I used the Dirac Harman 8db (However I like both 6db and 8db). I think I prefer 6db with LFE+Main and 8db with LFE. Just play with them all until you find what you like best 😉
Always happy to contribute as your work continues to blow me away. Atmos channels have come alive in DD+ TV shows and it put me right in the middle of a thunderstorm without waking kids. Truly, thank you again for all you do.
Thanks again!
Thank you for your time and effort in creating this optimization tool. My system now sounds extremely clear/balanced and I'm hearing details in my speakers I never thought possible!
You're very welcome!
Thanks! I will always be a disciple of your word.
Yo da'man😉
You took the time to respond to my questions earlier - which was really nice. I just finished with A1 Evo (w/o Nexus) on my x1600 and I'm really grateful for all the work you've put into this. Thank you. Nexus is definitely beyond my skill but the A1 Evo was a breeze.
🙏
Thanks you so much for your work and time and attention to all of this. Can't wait for version 2.0
🙏
What can I say, amazing 🤯 Much appreciation. I don't think you realy realise the magnitude of your work and how much you are helping the community to get the best out of their sound system 👏
My pleasure!
Thanks! for the hard work, the awesome software and the fast support!
🙏
Thanks for your work, I follow you since A1 evo and done all your tutorials. The sound became better and better each time. This lastest grinding change the done, even with a poor audio band on an old serie. It took me about 4 hours to do it properly. That’s amazing
Great job! Cheers.
Thanks Serko for all your hard work
My pleasure!
Serko, I just donated $20 to your YT account. MJ Maestro was/is amazing but NEXUS took my home theatre to a new level! Thank you so much for all of your hard work!
Thanks!
Wow! You are very welcome!
First :D OCA you are amazing. We appreciate you and your countless hours of hard work more than you know. I cannot wait to watch this again later and setup my new Nexus setup!
Cheers!
First I want to say thanks for all your work in this arena. What you have been doing is amazing and makes a huge difference in the theater room. I do have a problem I am trying to solve. I have made three position mic measurements on a particular speaker that when I cross correlate I have it synchronized at the start incorrectly. I have the MDAT file for you to take a look at before and after correlation if that helps.
The drive link to the mdat file is: drive.google.com/drive/folders/13Wg07ABIOObL_xT0lRxjwuH4r4zkPQDG?usp=sharing. The actual speaker in question is TFL. I have all my other measurements after cross aligning and Vectoring in this file also if you need to see them. TFL # is after Alignment, and TFL B4 Corr is before alignment. Also noting the second set of sine waves tf2 has a significantly higher percentage which might be the cause but technically this spot is further from the speaker.
I appreciate that!
In Overlays/Impulse graph, if you right click on the problem measurement in the measurements list on the left and select "offSet t =0", a pop up window will open where you can move the speaker impulse back and forth and manually align it to the MLP response. You can use fine adjustment and use the numeric input box for even finer adjustments. I fixed TFL for you:
drive.google.com/file/d/1NU9C4mOnW0wScFLev_f8f0HhyuD8c84T/view?usp=sharing
@@ocaudiophile Again thanks so much and I ran through the exercise myself also to make sure I knew how to make that adjustment. One last question and this will be quick. I noticed some speakers +100 or -100% are opposite of each other? This normal or do I have wiring issues?
That's not a very good indication of speaker polarity. Compare their phase responses in Overlays by smoothing them to "Psy" first. You can invert the measurement in REW, it's one of the right click options. You can see which polarity is more inline with the other speaker(s).
I finished a measurement of 7.2.4 system, and Optimisation in Nexus v2.2. Used -12dBFS lossless sweeps with the -10 dB SW sweep. Everything came out as expected and sounds fantastic. The bass integration is a game changer - nice tight, smooth, extended, non-boomy bass matched to e target curve of my choice! Nexus allows me to add extra measurement positions, or change a sub setup, etc, without having to remeasure the whole setup. It will also allow me to do a DEQ setup as well after I experiement with the non-DEQ setup. Thanks Serko for your great coding and persistance in developing this Audyssey optimisation. Beats me what the actual guys at Audyssey are doing - nothing new from them except a new smoothing algo all year.
Wait for anitDEQboost2.exe which will remove sxcessive surround/height boost of Audyssey DEQ in lower volumes.
How did you manage to mesure the .4 REW only mesure 7 speakers i think ?
@@ericfilion259 With the sweeps provided by OCA, played through VLC with HDMI passthru. Watch the video.
Danke!
🙏
Hello OCA . Please advise me , how to aproach this if i have a bass shaker . Denon X3500H AVR . So i run audissey and fool it by connecting a double RCA to both sub outputs on the avr and connecting both RCA to the subwoofer . My subwoofer has 2 RCA input , L+R .
So when calibrating , Audissey sees 2 subwoofer when in fact there is only one . After calibrating with audissey i just move (connect) the sub 2 output to the Fosi Tp02 amp which drives my Dayton Basx A300 . In all of this i think i have a problem regarding the volume , because at the end when connect the RCA correect , i mean the sub output from AVR to subwoofer now i have 2 RCA signals that enters the subwoofer , not only one as i do the calibration . I hope i can make myself understood ... Thank you
Many thanks!
Try v1.9 and the new sweeps uploaded a couple of hours ago.
@@ocaudiophile Ok. Will try it . How to set the bass shaker in REW , do i copy the original sub measurement and then make it flat on the eq ? Thx
@@dorianestate You need to use REW's internal sweep for sub. The details are in the changelog in the download folder. No experience with TTs sorry :(
This is fantastic, thank you so much OCA!
Glad it was helpful!
Takk!
Thank you!
Ačiū!
🙏
Man I got say, I am loving testing and messing arround with A1 Evo Nexus!!
I notice some things while playing around with Evo.
1 - Since it only calibrates below 282hz, if you put a custom curve like the Harman Kardon that have a high frequency roll off, it will just ignore the high frequency roll off of the curve sinse it doenst calibrate high frequencies, so the custom curve only applies below 282hz by default. (yes you can make it calibrate until 20khz but I did some tests and its better leave at default or the maximum 1khz recommended).
2 - if you increase the maxboost it will take a lot longer to generate the ady., some times it even seens stuck (best to leave it in the default mode)
3 - in my case I updated my old REW to the the latest beta, it didnt work out so if you got stuck genereting the ady file just install REW fresh.
4 - Analysing my speakers impulse before and after calibration, I noticed that it changes a bit, not by much but it changed, is Nexus trying to corret Impulse Response just like Dirac?
Finally, my system definitively sounds clearer with more details and better stereo imaging in both movies and musics, I tried calibrating it manually, tried Audyssey app with a lot of adjustments, tried Audyssey Supreme calibration (it was what I was using before this new calibration, and the better of all until now with Nexus), and Nexus is clearer the winner of all this options above. Thanks OCA for this awesome tool!!!
🙏
So far the most significant improvement compared to EVO Maestro.
I have the UMIK-1 USB Measurement Microphone that I've used for measuring.
Thank you very much for your efforts.
Great to hear!
Is there a chance to get something like this for a 2 way stereo system or much better for car hifi system running a raspberry pi with camilladsp??? What you are doing with REW is just amazing!!!
Another great video, thanks OCA!
Awesome as usual !! Thank you so much Sir !
Most welcome!
Just went through the process. Like being able to redo measurements with rew! (Such as lowering my subwoofer to have near 0db volume adjust needed.)
Worked fantastic with a umik-1, best sounding my Paradigm Signature S8 have ever sounded.
Crystal clear, nice thumping bass. Did it all with DEQ at 10 offset.
Noticed that the final ady has midrange compensation enabled on multieq app.
Should we take this off or leave it?
That's the spirit👍
That should be enabled only for the subs. I'll double check if there's a bug
Did you compare it to Audyssey Maestro MJ? Is the difference significant? thanks in advance!
@@vortexor1 I've used each release, liked the initial EVO ones. My setup does sound different than Maestro MJ. Being able to use my UMIK calibrated microphone and find the central spot was a good improvement.
I've used many target curves, making each release hard to compare. Using the Harman Kardon curve this time.
How do I do "audio sweep files" for my Auro-3D 13.1 configuration (specifically CH and TS as they are not in the Atmos files provided?) - I use a Marantz 8805A AVR not that it matters? And thank you for all the excellent calibration work - an amazing upgrade from straight Audessey; best I've ever heard my system sound!
x2
I have heard people manage to play Auro channels when they set FH and RH instead of TF & TR but I don't know much detail about Auro systems tbh. However, you can always switch banana plugs behind the AVR and measure them with any other sweep. For just CH and TS that shouldn't be tedious. Give them appropriate names in Nexus as in the Auro ady and you are good to go.
@@ocaudiophile that seems to be the best approach switching the plugs however I would assume care be taken the same amplifier be used because of their individual sound profiles. Once again I love your contributions with these calibration software tools. Simply amazing and superior sound over Audessy. Please keep it up.
Mr OCA I was watching your live listening with my headphones but I fall sleep but in a good way: the most amazing thing right away I start dreaming with you , in my dream my brain was listening to your live and it was like I was in a classroom paying attention to your Evo Nexus guide , I even meet you after the class ends I shook your hands to thank you for your great work.
I wish I lived in a timeline where you didn't post this comment.
A combination of evo and audysssey art would be perfect😊
This is great...well done...lots of love❤❤
Thank you!!
Last version I used was A1 Evo v3. Is it worth the effort switching to nexus, if I just have the standard Audyssey mic and a 5.1 setup with 1 sub?
This is for folks who want to go full manual. It’s more involved and will yield slightly better performance. But it’s not going to be a night and day difference like plain audyssey to a1evo was.
@@navidmahmood876how many measurement positions should we use?
Start with MLP only and listen to your results. You can decide what area to extend your mic positions in time. You will probably not need to ;)
@@navidmahmood876 what about those of us who never get near 85db which is what has always been used for EQ with audyssey and A1 EVO?
Hello, first of all, thank you for what you do. I have a problem when launching the "optimize calibration" menu. The speakers are correctly named because they have been duplicated in REW. Then I confirm that I have activated the Dynamic EQ. I then entered the volume of my amp at the time of the measurements under REW. And from there, I have recommendations (in blue) like using the FoxDynamicEQ.exe etc.... and nothing happens anymore. Thank you in advance for your help. Kind regards
It could be your REW version or installation. You can get more help in the "Audyssey One" facebook forum for such issues.
Same here sadly :/
Could you fix it i m stuck on the same thing ?
@@muehliism well i went into developer mode on the browser and checked for errors.
Was the wrong beta version for me. V55 didnt work, v60 does work however.
@@Cyberabit damn i checked on REW for updates but it says it s up to date. So more troubleshooting i guess
Thank you very much for your efforts (22k lines of coding !!). Why is it that you don’t use a center channel speaker in your own set up ?
Another question can I use the same process (REW) to fine tune my stereo with the minidsp 2x4 HD (instead of Audyssey). Regards
My fronts are very symmetrically placed in a rectangular room and throw a great phantom image higher than where I could place a center channel besides 2-way center channel designs inherently cause cancellations in the horizontal axis.
You will see filter details in the notes after REW completes optimization. You could manually enter them in EQ window under Generic than change equalizer to Minidsp and REW will automatically adjust the filters which you can export as biquads ready to upload Minidsp.
That’s a very interesting point. Infact this will make optimum use of front stereo speakers- far more than they are used now. Also waiting for your comment on stereo calibration. Thanks once again.
Which calibration file should I use for the measurement? I will be taking the measurement on a Mac using the UMIK-1. From the video, it seems you uploaded a calibration file from your audio tools, but it’s not clear to me if I need to do something similar.
Hi, I am going to be setting up A DENON avr x1800h and I have 2 subs. A polk hts 12 and a wharfdale sw150. I know the amp doesn't do separate sub feeds but is it worth using the wharfdale in the set up and will a1 work it all out? Thanks.
Hi OCA. A few quick Nexus questions.
The video part 2 has separate files for each speaker but there is a single m2ts file in the downloads folder. Do I need to edit this for the speakers I have?
Sub levels before measuring. I turn the receiver to a high volume but do I need to level match the sub before measuring or is this not necessary?
Couldn’t find a way to search comments so apologies if this has been asked already.
Found the files in the Mac folder. Is the windows version still better for atmos optimisation? If so, do I still use the mp4s in the Mac folder??
You can use mp4 files just the same but you will need to measure the subwoofer with REW's internal sweep.
How does the output correlate with lets say a AVR with Dirac such as the Denon 3800 vs the same AVR with REW/ Nexus Evo
Nexus outputs results not exclamation marks ;)
Trying to get this all working on a MAC Pro (Sequoia OS). Only issue are the 256k Atmos sweeps. VLC doesn't have a passthrough option on the Mac version (although Preview, Apple TV and Music now do). Mac has HDMI connected directly to Denon Avr but sweeps do not trigger Atmos mode on Avr. Is there a way of playing these sweeps on a MAC ?
There's but I am not a Mac user. Try the FB group.
@@ocaudiophile Thanks - have you got a link?
facebook.com/groups/audysseyone
@@ocaudiophile Thanks - I've requested to join
@@manatee1714 Hi, I am in the same boat. Did you find the solution?
Good afternoon. When measuring with Umik in the REW for the Nexus, how to measure the subwoofer link connected in this way - two subwoofers are physically connected to the sub 1 input (by the splitter), one subwoofer is connected to the sub 2 input. How to take measurements? Sw1 we measure two connected subwoofers to the first input, sw2 we measure one (third) subwoofer connected to the second output? Or is it possible to measure each subwoofer separately for sw1 and then somehow combine them? And at what volume of the receiver to take measurements with dynamicEQ turned on? I made it on -35 receivers (rew 75db) - Nexus swears in red that the subwoofer volume is too high and something about -12db. I made it on -42.5 - it still swears that the subwoofer is high. There are no volume controls on the subwoofers, all 3 subwoofers are the same - technics THX sb-tw50.
the two subwoofers in SW input 1 can be thought as one sub. Since you do not have a DSP that could handle different timings and filters (miniDSP) you cannot control them seperatly. The subwoofer output will always be the impulse response of both tuned manually. What you CAN do is to measure both while the other is physically off. Then you have both seperate impulse responses and you could align em via phase knobs to align there impulse maxima. After that, Nexus can do its voodoo.
Good day, thank you so much for everything you have done and continue to do for the community. I used Audyssey One and loved it and now I want to use this new version but I have a question. My setup is currently 5.1.5. My system is setup for both Dolby atmos and auro 3d, and I know auro went bankrupt, but any file with dts will utilize the full auro format. So my issue is that I do not see a sweep file for the top surround aka voice of god channel. Does this mean I wouldn't be able to use that speaker anymore or is there a way I can do it? Your response is greatly appreciated. Thank you again.
For CH and TS channels, you can measure by switching speaker cables from the back of the receiver.
Hi Serkan,
I watched the complete video and read a lot of the comments. Thanks for sharing your knowledge and putting so much time and effort in this project.
I'm new to the optimization topic and I can't evaluate the benefits Nexus (doing all measurements on my own) has over Maestro (using the audyssey measurements). Do you have measured the results of both versions and compared them? Or how would you describe the audible difference of Nexus/Maestro in the room?
Some people say day and night but that's probably hard to explain. My system saw an improvement in sound of about 10-15% I 'd say. I have measured my results not because I needed to because I will only go back to the board if I hear something I don't like but I was testing the anti-DEQ tool and saw that Nexus results are better volume aligned in general.
Thank you for all the hard work and sharing all your knowledge. I have a question. I have an Auro 11.2. System and i think an easy workaround to get the Center Height and Top Surround is to meassure everything like you explain then transfer the ady file from your program and afterwards at least on my Denon 3800 go into Set Up Assistant and just put in all the Floor Channels like before and for the Height just put in 6 Pairs of Height Speakers (Front Height, Top Middle Left + Right and Rear Height) Front Height then plays over Front Height, Top Middle Left is Top Surround and Top Middle Right is Center Height) and the Rear Heights are Surround Heights. And in REW just type in the actual name of the Auro System. This works but i get stuck after typing in the Dynamic EQ DBs. Could the mistake be because i did this or because i did something wrong in REW. My Subs were really quiet compared to speakers (even the 10 db louder file) and there was too much noise for REW but i did the first trial just to see if it works and it always gets stuck after the Dynamic EQ (no error message).
Why don't you try switching TS and CH speaker cables with C and measure them with the Atmos C sweeps as usual. You don't need to do anything else after. You can safely ignore the noise warning with sub measurements, it's because full range sub measurements will always seem to REW as too noisy because subs have lower output than room noise level beyond 250Hz or so.
@ocaudiophile Thanks for the fast response. The reason is because my Reciever is in a really bad place to switch everything around. But i double checked and the sweeps play through the right channel. Next time i ll try that but before i ll try with your previous version and just name all my measurements like your program spits them out because i did 4 Positions in both. It sounded so good before so i m wondering if with the umik 1 it gets even better. Thanks again for all the help. You got me hooked on improving my audio but i m just too lazy and not so knowledgeable to be as obsessive as you lol.
Oh god i was even more stupid than i thought possible. The old code calculates with the Audyssey sweeps and the mic cal file. Well off to switching cables...
I take it that it is still advisable to use a miniDSP for subwoofer leveling/phasing before using this if the subwoofer outputs on the AVR don't send independent signals to both subwoofers?
Yes but keep the relative delays in MiniDSP short (within 5-6ms)
Nexus is a stunning A1 release. Oh - my - word the sound has progressed to another level! Serko you are a genius and congratulations on another ground breaking version; this is some journey you are taking us on and very much appreciated as always. (I donated to your account Serko yesterday but did not show up)
As a “beginner” like me, it has been a while since I shared an update and also finding time (Family related stuff etc) was key to getting going with Nexus. So before I get into the listening/sound test and movie clips used to share some detailed sound analysis, I thought I would share some “getting going experiences” first in case it can help anyone who really really wants to make the jump but haven’t quite got going yet!?
For me Nexus is probably one of the most exciting releases of the year so far; I have been very eager to test since it was released. From my perspective I am still a bit of a noob in all of this as I am sure many people are, especially as Nexus requires a little bit more REW experience but I will work at it and give myself time to do so. My preset 1 and 2 has been used for Evo MJ (LFE+Mains vs ForceCentre - both are great regardless and I previously prior to Nexus switched depending on types of movies).
With this new iteration it was clear I needed to be properly “prepared” for when I get time and being a beginner, trying to make this as easy, simple and effective as possible. It required a bit of investigation/setup to get going. The time to immerse myself into this is now underway. I also hope what I am saying resonates with other users out there who are preparing, maybe sitting on the fence, reading comments, pondering and poised wanting to make the jump; especially knowing that finding time is also critical to Nexus success! *REMEMBER* We can keep MJ on a Preset (or ready to put back on if need be) and if we are time bound, its easy to switch later to prevent any family complaints in the cinema room! We also know Nexus will be incredible (Based on all iterations so far), we have absolutely no doubt about that! So why would we not do this? We can sure can do this!
So here goes.. I am a MacBook Pro user generally now but have desktop PC’s elsewhere in the house along with a multitude of other small devices. For example I am using Intel NUC (8th Gen), Raspberry Pi’s, oDroids and Tinkerboards. So where do I begin to ensure a seamless and issue free experience going forward? Obviously OCA’s videos and forum feedback plays the main part. What was key here was allowing myself to be able to support Dolby Atmos sweeps via HDMI to my AVR (Cinema 40) and remain out of the home cinema room altogether; allowing simple remote control. Without going into any detail I decided to opt to use my Intel NUC (8th GEN) as it has 2 x HDMI 2.0b ports and supports Dolby Atmos (TrueHD Atmos / DD+ Atmos) - I remember testing this ages ago with Windows prior to Linux/installing ESXi. It was currently being used with ESXi to run pfSense and other VM’s for house related automation and such like.
(Note, I will be experimenting with MacBook Intel later as well as other devices but right now I will go for the easy well tested option - at least I think it is the easier/risk free option - share your experiences here as they will be very handy for others; especially Mac Book users!)
So, Intel NUC at the ready I therefore decided to replace the SSD with a new SSD and installing Windows 11 (There might be HDMI virtualisation issues, so decided not to pursue!). Note you can pickup Intel NUC’s in UK for anywhere from 80 to 150 quid (ensure HDMI 2.0a/b ports) and are now supported by Asus. Great devices and a risk free route to get going and knowing Serko uses Windows for primarily creating this solution; so we can be as close to testing as the environment he himself uses. From there I ensured all drivers and BIOS was up to date. I have installed ASIO4ALL 2.15 (So I can use/test both ASIO and Java also), REW latest beta 57, VLC and done all the various configuration to ensure a simple test works as expected based on this video. Here I made sure that when remotely connected, the Dolby Atmos was still being played to my AVR via HDMI and switching as expected by using the Dolby Atmos test clips. Running a Dolby Atmos test clip will be critical later when creating a “zero” based setting Preset for validating settings on the AVR App! (The Intel NUC has now become my media centre for other things also and works very well!)
Continued ..
Preparation is key right? So using my MacBook elsewhere in the house I can now remote on to the NUC situated within the home cinema room. The next step was to use the Audyssey MIC however I thought to myself this is Nexus, we may discover the Audyssey MIC has fluctuation issues amongst other things based on the previous experiences shared by the expertise of the AVRForum and OCA himself during Evo. I would also need an adapter for the NUC as the NUC I have doesn’t have a microphone socket. At this point I decided to get a UMIK-1 USB Microphone that is plug-and-play, supported/endorsed by REW and again just makes life easier; will no doubt compare UMIK-1 with the Audyssey MIC at some point later on this journey with Nexus. (In UK for £125 free next day delivery - Kalibrate Limited) I also found a USB extention cable as the UMIK-1 cable is fairly short!
I am now at a point whereby I can do the simple measurements although I am still experimenting/learning! With Nexus my initial assumptions were you would really need to allocate time for measurements and with the home cinema room I am also adding a 3rd sub woofer (A 4th will come later in the journey as I am sure there will be more!) into the mix (Why not? A second sub was transformational with Evo MJ!). I have also tweaked placements of existing sub woofers recently and of any of the speakers, subs tend to be the thing I tweak/adjust placements the most!
Before starting with REW / Nexus my initial thoughts were that MJ would provide the express route to testing and to ensure everything is sounding as expected - I was thinking Evo MJ would become like the smoke-test (where time is limited) prior to the REW measurements with Nexus and the allocating of time. I was ready to allow for MJ to be used for the quick test placement adjustments within an hour and then allow me time to listen and ensure all OK before moving to Nexus version with full measurements.
I was so so wrong - I don’t really need MJ (Long live MJ!). Nexus / REW is actually quicker and far easier than using the Audyssey measurements process of MJ and I can easily move a sub and do a single sub measurement very quickly and remotely without waiting through all of the existing speaker measurements that Audyssey would take you through! I only need one measurement, not 3 (Mainly to get going without any align/vector av over multi measurements)! This is brilliant! Please note what I am about to say next is ONLY if you put your Mic in exactly the same position used for the complete set of speaker measurements. (I am not sure if it is recommended doing a single speaker measurement whereby Mic may end up being in a very slightly different location to what other speakers have been measured with - this is mainly as a quick test only where maybe time is limited. You would expect all speakers to be measured with MIC in the same location!)
When you eventually get going, you realise that actually going forward this will be “quicker” and “easier “to make single speaker measurement adjustments using same Mic position. I do plan on moving my centre speaker slightly in the coming weeks and it will be very easy to do (Using my previous Mic position I know exactly where it is and positioned previously) although I will do a full set of re-measurements for all speakers when I have the additional time. However, this will be very handy for sub woofers, whereby I feel that either moving one of the existing two OR adding in the third WILL no doubt be quicker than MJ and the Audyssey measurement process. This is a realisation once you make the jump into REW measurements. Above I mentioned the potential assumption of the simplicity of the express route of MJ - however, I think you will quickly realise Nexus will be faster and easier long term, even doing a full set of measurements which is the recommended process to ensure all speakers are from same Mic position especially considering I only need 1 Mic measurement per speaker. One point I would say is when doing your first set of measurements for the MLP and additional couple of MIC movement positions, I save this as my original RAW measurements mdat file. (Keep this safe as its easier to grab original measurements and do the required adjustments if need be going forward) I now have a collection of mdat files and keep a log/audit.
Continued ..
A point I am unsure on right now is that unlike the Audyssey MultEq App sub level process where you adjust the volume of the subs so that they sit within the green zone, I feel like that bit of logic for optimising sub volumes would be very handy here - maybe a small utility/REW process to correctly adjust? OCA do we need something like this?
Before running measurements, start Nexus and generate your AVR mode .ady file for the AVR preset 1 that will be used for your measurements. Once distances/levels are all validated as zero, ensure 250hz is set for you LPF. On the AVR App, ensure you select the multi stereo option as it automatically switches to Atmos source. Now when Atmos source test clip is in play, ensure Cinema EQ is Off and anything else like Dynamic Volume “light” is off. Once settings are validated, restart your AVR by powering off altogether and restarting. Repeat your Dolby Atmos clip and ensure everything mentioned is set as expected. The AVR’s tend to have a few bugs that do not correctly set until after a power cycle restart.
The experience for measuring all speakers is fairly straight forward however I did have a few attempts at doing the subs. I did find that setting the subs to directional mode and ONLY leaving one sub on at a time for the measurement provided the better results. I also found that using REW to do the LFE (sub) sweep was closer to where I expected the sub response to be (I was comparing last MJ measurements from Audyssey with new measurements as a simple guide for myself so I had confidence they were within reason and I hadn’t made any major mistakes). All measurements were done using master volume -15 and I set the REW LFE (sub) sweep at -10 or -12 provided the best results so far. Again, these are just initial tests and I will no doubt improve my tweaking as we go forward. Also you only need a single speaker measurement to be used by Nexus which allows you to get going with incredible results (Sorry I keep mentioning this but it just makes it simple and easy!)
I did two Nexus runs initially and the first run was using SWx (And 10db louder) sweeps using VLC and the second using REW LFE sweeps set at -10. First test I noticed subs were -11 level output (REW also provided some warning messages) or so and you could tell when listening the bass wasn’t quite right (Better than being too loud though, leaning on caution!). After using the REW LFE sweeps set at -10, this resolved the issue however I did spot to use -12 for REW in the notes, so I will be doing this again soon. However, my second update to Preset 2 came alive - I just never expected such an improvement over MJ. It made me smile a great deal and chuckle with delight - it was simply stunning! I know I have some tweaks and improved measurements to do but right now I am up and running. Preset 1 is left as my “measurements only” mode Preset and Preset 2 my Nexus optimised sound.
I will follow this up later with my listening experiences of movie scenes tested so far and will report back as there are details in sound I have never heard ever before and the clarity is unbelievable. I could not contain myself at this point. Wonderful stuff. Thanks OCA!
Thanks for sharing your Nexus journey. Which sUbwoofer measurement sweep to use is still a bit of a mystery due to quite varied feedback and you seem to have sorted it out. It's true that once you have the gist of it, Nexus is easier and can help a lot with improving your speaker/sub placement. Enjoy and do not expect this to be the end of "better than previous" scripts ;)
The only thing holding me back from using my PC as HTPC is the missing Dolby Vision support on Windows. Are you able to get Dolby Vision on your Intel NUC? 😊
I have HDR on my NUC 11th gen but not Dolby Vision
As it was processing, I got an error message in red "Invalid measurement names detected" and then it repeats "aligned sum" multiple times. This stopped the process.
Check your original REW measurement names, there must be something out of ordinary among them. Also try the new Neuron ;)
Hi OCA, thanks a lot for your efforts. I am so anxious to try out your settings but the resultant ady file from Nexus is not recognized by the MultiEQ android app. These are the steps that I performed. 1) Create a sample calibration file in MultiEQ editor app by measuring only three position, because 3 is the min, and created a ady file. (2) Uploaded this to Nexus for Speaker configuration. (3) Synchorized the names of the REW with the Audyssey names, (4) Generated a ady file pressin the No DynamicEQ option (5) Ran nexus forcing Small front and no sub polarity change and it completed successfully. When try to upload both of ady files (final and multieq off) to multieq editor app, it says either the file is not in the device local storage or is not proper curve file. Both of the files are on phones local storage. Please help.
Once I moved the ady files to google drive, multieq editor app imorted it fine.
So here's the thing: due to my room layout my left speaker is quite further away than my right. Should I just center the mic to the listen position and ignore the distancing stuff? Or calibrate between my center and right speaker? Because they are in more realistic positions. Does REW/A1 automatically compensate for the further distance my left speaker is at?
Yes, you don't need to do anything....
You have another video correcting the phase into umik calibration file. You say nothing in this video. Do you recommend using here corrected phase file? Thank you in advance!
Yes I do
@@ocaudiophile Is it possible to apply this adjusted calibration file to the measurements afterwards (subtract the original one from the measurements, add the new one or something) or do the measurements have to be performed again with this newly created calibration file?
@@alvysslp Why would you want to do that?
@@ocaudiophile I understand the original comment here to mean that the corrected calibration file means an improvement in the measurement or its results over the original one, which would certainly optimize Nexus' calculations, or am I wrong?
OCA, thank you for this info. I can’t wait to try it on my Denon AVR. A question please. I intend to purchase mono blocks for my L-R speakers and an Eversolo A8. For TV surrounded, I should be able to feed the analog input of the Eversolo, using the Denon L-R preamp output, and still take advantage of the A1 Evo Nexus installation with Audyssey. But, when using the Eversolo to stream music or play a CD, the AVR will not even be on, so I need some correction for the speakers. Do you the think I can use the process of Convolution with Inversion you presented in an earlier video? The Eversolo has a DSP and they have instructions for installing REW files.
For information, by connecting the system as I described, I only have one input into the mono blocks and will not need to manually switch inputs. I will use the 12v trigger from the Eversolo to turn the mono blocks on/off and the Eversolo can be controlled from my phone or iPad. Also, the DSP in the A8 is not on for the analog input, so, surround playback will not be affected by the Eversolo. Thank you, Mabe Hall.
Sounds like a plan. I can see Eversolo has FIR filters so you can use the technique in that tutorial.
When playing sweeps from file to measure SLA channel, FL channel also plays the sweep. And when playing sweep ffrom file to measure SRA, FR also plays the sweep. Its not the case for any other channel. Why this happens?
Your receiver cannot do Atmos with both surrounds and surround backs when there are also height channels probably (5.1.2?). When you are playing SLA, receiver thinks it's surround back channel (maybe you should re-define them as surrounds, not sure but this problem was solved by others in these comments) and Atmos decoder triggers FL so as to simulate sound coming from the middle (SLA). You can also disconnect FL temporarily during the sweep.
When measuring for multiple listening positions, can this new way of processing measurements allow for seating positions 4 feet away from the MLP? Or should we still stick to the Audyssey recommended 2 feet?
You can measure as far as you wish and it will produce a result and you will get a more uniform bass response overall but it will not be as good anywhere as how it could be otherwise. Unless you regularly use the larger area for listening, I would suggest sticking to measurements around MLP.
@ I appreciate the response!! Would it be worth it in that case to only measure the subwoofer and cross corr-> vector average those? Or still stick around the MLP for that
Edit: I realize I misunderstood your response, for the best bass response at the MLP, sticking around there for measurements is best, got it, thanks!
@@timothypoozhikala9791 Take measurements as wide as you want, run one optimization with all of them and another one with distant ones removed and compare your results by ear.
Hi @OCA around 46 mins you mentioned to load the bass ADY first. What did you mean by that?
Base ady is any calibration file you have in hand with the current speaker configuration of your system.
@ocaudiophile ah got it thank you again!
I just finished and can already tell a huge improvement in my atmos. Played the a quiet place 2 - scene with the bomb coming in during the baseball. Whoa!wbomb wasn't in view but I could hear it all over my head!.
I need to play with the bass to make it hotter. It's a bit too low for me.
Any suggestions? I've two SVS PB 200O
1:02:00 at least on my x4100, the web interface can change the volume. Go "< Back" to home screen and click on the Main Zone, volume control is there.
I'll check, really didn't know thanks
Hello OCA,
I did one measurement without Dynamic EQ (via blueray player, with lossless files) and always used it for the new version of the script. But after the last update, I'm a little bit confused. What is the purpose of FixDynamicEQ.exe? Is it better to make measurements with Dyn EQ ON?
I listen to my system mostly at night, but I always try increasing the volume for reference level, mean -30db on AVR. That should be the volume at which the AVR stops editing curve by EQ when DynEQ is enabled.
It will make a sense for me to do measurements with DEQ ON? and use the SW uploaded by new ver. Nexus 2.3? Or it is still the best and easiest way to measure, with Dyn.EQ off on the volume lvl, which I prefer to be a calibrated? For me 80db.
Mentioned by script
[IMPORTANT] Final target level optimized for minimum total volume step deviation per speaker and maximum overall adjustment flexibility: 79.99dB
Maybe a idea, to make a new video, or some documentation ,where you can compare the calibration with vs without Dyn EQ. If that make any sense.
thx.
DEQ on measurements are identical to DEQ off ones at the measured AVR volume level. If you regularly listen also below that level then DEQ on measurements will make sense. They are better at lower volumes. FixDEQ fixes the problem with DEQ which is too much surround/height boosting at lower volumes.
@@ocaudiophile So do i run this while hearing to music or watching a movie with DEQ On?, or does it fix my ady after nexus created it and then update it on the VCR?
@@StuggiSuzi First one.
Can you clarify what mode the AVR should be in when taking my initial REW measurements? When I press the "Pure" button on my remote there are two options:
- Auto (which switches to Dolby Atmos when I play the sweeps in VLC, and shows the Audyssey icon on the display)
- Direct (which still uses the Atmos speakers but does not show the Audyssey icon)
Based on your post on the AVSForum I assume I want Auto, since we want to correct against the mode I will be listening in (I never use pure direct), and when using the cleaned .ady file Audyssey is probably doing very little. I also assume if we were using Direct mode there would be no need for the cleaned .ady file since Audyssey is disabled.
My only concern is that even while using the cleaned .ady file, my speakers still seem to have some crossover, and I can see my sub active when playing sweeps on my other speakers. Is this expected? I thought the rew mode .ady file was supposed to disable crossovers.
AVR should be in Movie/stereo mode and REW measurement mode ady file should be transferred to it. AUdyssey must be on and in Reference.
@@ocaudiophile Ok, sounds like I am on the the right track. When I transfer the REW mode .ady file the Audyssey option on the AVR's web interface is grayed out and I can't click on it to see what mode its in, but I can see from the front display that it is on.
Do you know why my subwoofer would still be active while playing other sweeps? Is that expected?
No, REW mode ady changes all speakers to Large, just make sure bass mode is LFE and not LFE + Main
@@ocaudiophile Ah, I think that was my problem- it was still set to LFE+Main from a previous run , thank you!
You're amazing!
Cheers!
I know this video indicated 500 for maximum measurements. I notice mine has a ceiling of 300. Is this what others are seeing or is there something I need to adjust to have the 500 like you have mentioned in the beginning of the video at 1:30.
Your REW is not up to date.
I have just stumbled upon this video and WOW i can't wait to try it, amazing work. If i am using a mini DSP to tune my 3 subs how do i go about running this calibration? Do i leave my current HC/Time alien etc in the Mini DSP and run this over the top? Thanks.
If you've one of the new models with 4 sub outputs, better remove Minidsp or else keep it but remove filters from it and use minimum time delays.
@@ocaudiophilecool thanks. One other question ref the Center measurements, do you take a mic Center measurement for every speaker then align each speaker or do you just take one initially and align each speaker to a single measurement.?
What is the advantage of measuring at the volume you normally watch movies in comparison to the audyssey measurement (I believe this is at 75db?) I listen at -16db at my Denon.
Preferred target curve is matched with "equal loudness contours":
theproaudiofiles.com/equal-loudness-contours/
Dynamic EQ calibration for the first time and it's gonna take some getting used to, quite louder than ive gotten used to. I did see a discrepancy from past evo/maestro where my TML and TMR were set +3dB different where theyre usually set the same level. TML sounded way louder so I changed levels to match and it seemed to blend better after that.
I have a question on the sweeps. from the video, it seem you took the measurement for FR using the file. Is that how I do it for my speakers because I don't have atmos speakers.
It was later changed to "FL" but yes...
@@ocaudiophile I see. thanks. Also, on center the microphone. How would that work if I need to measure from 6 different listening positions for the 5.1 setup? Do I need to center the microphone between the FL and FR for each listening position?
Only the first round of measurememts need to be centered
thanks oca you are best 🎉
can i manuell a normal ady to deq boost switchen ?
OCA, thank you so much for putting this out. One thing I'm seeing is that REW Sweeps from files are significantly louder than the sweeps run through REW itself. I'm finding that I have to turn my AVR was down when playing those. What should the SPL of the Sweep files be when I am running them?
It's because they have 0dBFS volume level vs RE's default -12dBFS. These sweeps don't play loud in certain receiver models so were made louder. It's useful to take loud measurements.
@@ocaudiophile Okay, thank you for taking the time to respond. I really appreciate it. One other question. I have four subs in my room, but my Denon receiver only has two subs. Should I combine them into one sub via the MiniDSP, Or, will the Evo script combine them into one sub for me?
You will need MiniDSP if you don't have 4 sub outputs in the AVR (it's possible to use a y-cable and connect 4 subs as pairs directly to the AVR but the results would be varied). You can measure each of your 4 subs in REW and feed that to Nexus to get optimized distance and volume level settings for all 4 subs and then apply these settings in MiniDSP. Then measure all that as one single sub and re-run Nexus with it.
How do I center my ears? They're more than 3cm apart :(
hahahaa, you need to cross correlate them to each other ;)
Hi, Oca! I'm writing through a translator, sorry for the wrong language if anything. I'm doing hybrid calibration. I take the calibration of the odyssey by 8 points. I insert it into maestroMJ to get an archive with measurements for REW. Next, I insert them into the REW by deleting all dimensions except those that the name ends in "o" (for example, SLAo, SRAo), and then rename them by removing them from the name "o" (for example, SLA, SRA). It remains to work with subwoofers as there is SWMIXo. In theory, I should change the name to SW1. And send it to the Nexus. But what if there are physically two or more subwoofers in the system? Is there any tool that swmix can divide into sw1 and sw2?
:) No, that's not technically possible! WHy not just measure everything manually in REW and run Nexus?
@@ocaudiophile Constant errors during measurements: pure measurement signal to noise, click adjustment too large, high measurement distortion, etc. Even if you ignore all these errors, the script already gives an error on both subwoofers: sw1/sw2 volume is too high by AT LEAST 8.5dB, will have to be set to -12dB (hardware limit) and final results will be compromised.
And also in the final file exposes crossovers to the fronts either full range if large, or 40 Hz if small. And my passport fronts play from 60Hz at -12dB.
Hi OCA! Thanks for everitinhg! :)
I am using the Nexus v1.9, for the subwoofer REW sweeps, but I get the info "The measurement signal-to-noise is low 12,6 dB. Increasing the Sweep level may help."
My receiver is at the -15dB, which is the my average audition level, and the SWs are on their "normal" level that was base for the Audyssey original measurements.
What should I do to be able able to increased the REW sweep levels for the SWs measurements without jeopardizing the remaining speakers' measurements with the "Dolby Atmos REW measurement sweeps" levels?
Subwoofers will always prompt that warning because of their very low response at high frequencies. You can safely ignore it.
@@ocaudiophile just to give feedback on my test: I got no errors on the Nexus 1.9 log, but the file in the Audyssey app appeared as a "corrupted file". I used the same REW measurements in the v1.8 and everything went ok smoothly. The speaker distances were set more according with the true measures (v1.9 gives smaller distances) and the sound was great. Maybe I can send you the REW measures for your testing ;) Best! :)
@@miguelmedinaramos V1.10 fixed that issue.
I Dont know why, but i get thru the whole optimisation process. But it is getting stuck at: Optimizing EQ filters and generating expected final outputs in REW for each channel...
I tried it on different machines and multiple times. Always the same result.
Did you ever find a fix for this? I've tried on two different machines with two different browsers and mine gets stuck at the end when I believe it is supposed to create an ady file. But no luck so far.
@@roughnek201 yea i did fix it. I fucked up by not installing the beta of rew first. When i installed the beta it reset some settings. Most importantly the one for maximum measurements. Do make sure u set it to 500. 30 safed measurements are not enough for the script to work. After i changed that it ran flawlessly
@@bulletfaceLP Got it. increased measurements from 300 to 500 but still didn't fix my issue.
@@roughnek201 hmm, then it seems like another error.
@@bulletfaceLP Yeah, the software developer told me to uninstall, delete preferences and reinstall. I'm going to see if maybe taking that as well as the production version off of my machine clears the error.
Did I understand it correct that you have to manually sort, cross-correlation align and vector average your measurements before starting the optimization? Didn't Maestro do that automatically? 😊
Wondering the same, why that is not automized?
That's ort of the point of this version - it gives you more flexibility with measurements. OItherwise use Maestro.
@@gbye007 I see. But that sequence of procedures is what takes time. A lot of time. Would be great if you could just take the measurements, name them and let Nexus take it from there.
@@isak6626 I feel priveledged to have what's here for free already.
REW can be forced to take measurements with the API but that requires the pro version.
I got to the "waiting for timed reference" at the point where you calibrate the mic distance and it just kind of waits. I don't really know what I am doing wrong. I am excited to get this to work.
It's waiting for the initial chirp at the beginning of each sweep which comes from the front left speaker.
Hello there. A question about measuring the two subwoofers. Do I just unplug or turn off the one, that I will measure second? Or how am I supposed to measure the both of them correctly? Thank you in advance!
Yes you will need to mute all subs but one each time. LFE sweeps cannot distinguish between subs and all active subs will play.
Hello OCA - With black Friday around the corner, do you think it would be a worth it to purchase a Dirac license with full bass control? My system has never sounded better but i still struggle with bass control and was thinking of purchasing the license from Dirac. - Thanks
I hear Dirac has lots of issues lately especially with Denon & Marantz gear but the choice is yours.
I have Dirac Live Bass Control and Audyssey XT32. Compared to Nexus... DLBC and XT32 are a pile of s**t. I always had problem finding the right filters for my L-shape room but with the last silent updates of Nexus it got better and better. With the last silent update some days ago, my system finally got at its best without knowing what have changed in detail but who cares^^. Please save your money and invest these euros in this project. Probably Active Room Treatment might be a game changer but worthwhile Nexus is the best that is out there. BY FAR. FAAAAAAR. :)
I have a more general question. How does something like this integrate with using a minidsp 2x4 to use Bass eq? Would you just run calibration independent of subwoofers then calibrate with the DSP after, or allow the subs to be calibrated in REW and sent to the ADY file? This is probably niche so no worries if there isn’t info on that!
MiniDSP processing often introduces delays Audyssey cannot handle with its just 6m delay limit.
Hi, great job. I have 2 subwoofers and my receiver has two subwoofer preamp outputs. If I have a miniDSP, can I further improve the calibration with some procedure or is the subwoofer calibration sufficient with this script?
Yes you can remove the miniDSP from the system.
Question regarding the REW measurement. Using your new losless sweeps in REW, do i stick to change the db to 0 in the measurement settings of REW, or at -12. And measuring one Subwoofer, the same with the sweep, and also 0-24.000 or 0 to 240hz?
-12dBFS with the latest sweeps, all instructions in the changelog.
Use always 0-24000Hz for everything.
@@ocaudiophile Got it, you are reffering to the screenshot in the changelog? And for the sweeps, when do i use, or difference, between the height speaker and Dolby speaker sweeps?
People with Dolby speakers (I ain't one of them) claim, they get the best results with Nexus when they set them as top speakers in the receiver.
@@ocaudiophile same for me, just 4 heigths, no dolby. So i stick to those sweeps. Thanks for the assist.
Hi @oca! Just being done with REW measurement and Nexus processing, everything went very well. Just a few remarks and questions. In generel, i did a measurement with DEQOn, and my SPL level i made at -25db (which i also stated as Nexus asked me).
1. Subwoofer is set to -10db, which seems a bit low. I used the Standard Atmos sweep, not the +10db one. Should i use the other?
2. Script says that " 120Hz - set 'LPF for LFE' to 250Hz in the AVR for better LFE channel output! Sub is also not suitable for speaker crossovers above 120Hz", but also says to change to "LFE+Mains with 110hz on BEL. How does both match, because i only know where to change LFe+Main with Bel 110hz.
3. Not sure what to make with this message: "Limiting search frequency to avoid bass localization due to asymmetry due to odd number of subwoofers in the system!" I am just using one Subwoofer, which i named "SW1". This was created from 4 SW measurments and then Vector Average.
Thank you!
1. Stick with -10dB (SWx.mlp) sweep if the resulting bass sounds fine.
2. The two are different settings at different places in the AVR menu. Do exactly as the warning prompts say.
3. Use "uncap subwoofer lpf" since you have in fact 4 subs.
Resulting bass is a bit low for my taste, so i think testing other target curves?
In only have "lpf for LFE", so i guess 250hz would be right. Denon x3600 doesnt have two optiona for lfe.
@StuggiSuzi You adjust it with front speaker crossover in a 3600
Question sir! Apologies if I've asked this before - we've had too many conversations across too many videos and forums for me to remember or track everything down.
If one was not happy with the end result of cross correlation alignment - it was trying to line, say, a second peak up with the first peak of the other measurements, and it is 100% sure it is right, and no matter how many times you click it, it is not moving it any further - is there any way to manually give it a bump in the right direction, or even line it up by hand?
I've tried the Alignment tool and it has no effect on the data displayed in the Impulse overlay. I also tried a couple other random things and they too didn't help.
Thanks!!!
Are you using the latest REW Beta? I think with Beta 60 cross corr align has improved in that respect. If you are getting wrong alignment even with the latest REW then select the MLP measurement and the problem measurement in Overlays/Impulse tab. Right click on the problem measurement and select "Offset t=0". You can then manually align the speaker's real impulse peak with the MLP position in the pop up window that opens. You can use cursor keys and even enter the offset required in the box in milliseconds.
@@ocaudiophile Awesome, thanks!! I was using Beta 58, but while it was struggling to align I read the latest release notes and saw the improvement in Beta 60, so I stopped everything, installed that and started again. It's still struggling with the same one 😞 ... sadly my ex won't let me install treatments in her basement for the home theatre I built for my son, so some of the reflections are very bad lol
Thank you sir!!
@@ocaudiophile Hrm, follow-up needed it seems! I can see why it's having problems, this makes no sense at all, and when you get a couple peaks lined up, several others look like they don't match up with ANYTHING. Would the smartest move here be to just throw this one away for just this speaker? Or the whole set from that position? I know taking the measurements again would be the absolute best solution, but I'm only there once a week and can't spend hours taking measurements every time I visit him 😕 ... just have to make due with what I've got.
I think you're missing an important step I can't figure out. At 39:51 you load measurement file into Nexus, but HOW to do save your REW measurements / export them into .ady file before you load them in? Rew saves them in .mdat format. I can't figure out that step of rew file export into .ady file. Thanks! Or, do you just upload the sample perfect speaker with DEQ On file (same one you sent to AVR in the beginning of the video?) and optimize that with REW open that has cross-correlated measurements we just did? Please clarify
At the end Nexus will create the optimized final ady file from the measurements in REW. That's the one you need to transfer to your receiver for optimal settings. The first ady you transfer only helps to set your reciever for taking REW measurements.
@@ocaudiophile I think I understand now. It's the "perfect speaker +DEQ on" blank measurement sample file that we send to AVR in PART I of the video. That's what I chose in "upload sample calibration" as a file.
Anyways, ran the first set of optimization. It's asking me to reverse POLARITY of my sub. Few questions:
1. Is that the same as flipping my sub phase from "0" to "180" degrees? I never had subs it in "180" position, but it's a brand new sub I got (Klipsch RP-1400SW).
2. The second thing Nexus is asking is to set sub at 250 from 120. Should I do that?
3. If I do change polarity (phase?) and set frequency to 250 after optimization, do I have to then re-run measurements with those changed settings and redo optimization? Thank you!
1. Yes
2. Normally yes but there's a possibility your used the older SWx.mlp sweeps for measuring your subs and they had a 120Hz lowpass filter in them. Only since yesterday the subwoofer sweeps are correct. If you are using .mpr sweeps, their SWx sweeps all have that 120Hz filter (it can't be removed from them) then better use REW's internal sweep for measuring your subs. The instructions for that are in the changelog . You need to measure your sub without any lowpass filter applied (requires REW measurement mode" ady to be transferred to the AVR and also set the AVR submode to LFE for sub measurement). Then NExus will check where is your sub's real lowpass filter and prompt for correct settings.
@@ocaudiophile So, I remeasured my sub with REW internal sweeps as detailed in your latest changelog and re-ran optimization. STILL, for some reason it continues to say: "WARNING: 120Hz - set "LPF for LFE" to 250Hz in the AVR for better LFE channel output! Sub is also not suitable for speaker crossover above 120Hz" and still asking me to switch phase from "0" to 180 (which I'll do). I keep reading everywhere that LPF for LFE should always be set to 120. I'm confused.
@@gr8nrg187 That's not an error or a problem. It's just asking you to set your LPF for LFE to 250Hz for better LFE response based on your sub-woofer's characteristics. Polarity inversion is also something Nexus cannot do so asking you to do it. Orange prompts are for tasks, user needs to do manually. If your sub don't have polarity (phase) inversion switch, you can select "No sub inversion" option before running Nexus.
Hi. Thanks for sharing your amazing work! One question: If I do the measurements through REW and then use A1 evo, does it make the difference between Audyssey versions(MULTEQ, XT and XT32) basically obsolete? It would seem that the version differences only apply to the measurements.
You cannot do that. But Nexus will do everything Maestro does (and a bit more)
Non Audyssey system:
OCA: I've seen in other posts that you can force an ADY file to look like a 2.1 system for example; and that you could then run Nexus and take the volume and distance settings to manually input into your non-Audyssey receiver/stereo.
My question is regrading the EQ settings which I know you said would be v tricky! Would there be anyway of extracting them out of REW once Nexus has run and inputting into a convolution file for use in Roon or JRiver? That would be a great workaround for more manual audio systems using these high res players.
Just a thought 🙂 Thanks Kevin
Yes you can see applied PEQ filters in the notes of filters in REW at the end of optimization.
Thanks, are the filters the REW files with a “o” at the end eg:FLo ? Or is it the files ending with “channel” ? Or the files names FR etc
They are the ones with no suffixes. FL, FR,...
Great, thanks. I’ll give it a go.
I was also thinking of trying it out on my car stereo system for fun; but my Helix DSP can only process PEQ entered manually, so it I’m presuming it won’t work as there will be too many EQ points in REW/Nexus?
Hey, first thank you for your work, I appreciate it very much. I have a question about the LFE+Main setting. Nexus recommends to set my AVR to LFE+Main. The sound is very boomy when listening to music. I lowered the sub by 5db (from -0,5 to -5,5), this is much better. Do you have any suggestions? Wrong measurement or just stick to what my ears says?
Try a different target curve, you can also use force small speaker option
@ Tranks for the quick response. I used the Harman curve. What would you recommend?
Set Speakers „Force Small“, Target curve Dirac harman 4dB. Just awesome. Again: thank you very very much!
A question about the mic calibration file. I have to use the audyssey mic. Set Rew to Java, then to excl. but rew mentioned that you have to upload a calibration file of the mic. Anywhere I can find this? Denon 3800
In the same Google Drive as Nexus is a file called "Audyssey ACM1HB batch...." That's what you need.
It's in the video download folder.
@@ocaudiophile thank you. Not much experience with rew but getting there. very curious about the result of nexus vs mj maestro
Nexus is more accurate.
I got a UMIK-1 mic for Christmas. I just finished watching parts 1 & 2 and am overwhelmed! I need a simpler video on how to use my mic and REW so I can create the files and use NEURON. For now, I will create a new ADY file using my Marantz SR8015 Audyssey mic. Its going to take a few more views of part 2 before I can figure out how to use REW and mu UMIK-1 to calibrate my system.
If you use "odd.wtf measure" tool for measurements, you can still get great results using multiple mic positions.
@@ocaudiophileThanks. I’ll check it out.
@@ocaudiophile so I ran the batch file and see option 5 for automated calibration. I only have one sub, in a 5.1.4 configuration.
I will connect my PC HDMI port to my Marantz SR8015 and the UMIK-1 to the PC USB port. Is this all I need to do before starting option 5? Or is there anything else I need to do?
Thanks in advance for your help.
@@rafacq Yes that's pretty much it...Make sure you have fixLPF.mdat file in script folder.
Thanks again for your effort and work! I have three questions:
1. At which volume should i measure? I am listening on absolute value around 45-50. I ve never used the relative scale. Is it linear to absolute? everything above -30db is so loud in my living room.
2. why is LFE sweep -10db and not -12dbfs? what is the difference? on the mkv bluray sweep file the subwoofer is fairly quiet .
2. It is easier to use your bluray mkv sweep file. I dont have to connect hdmi. But should i still use the SW Sweep from REW then? If yes, i dont get the purpose of the file tbh.
1. The level you listen is the ideal measurement level for you, so stick with MV50 (that's -30 relative scale and equals 75dB). If you add dynamic EQ, will be a bit louder than usual.
2. LFE channel is boosted by 10dB in movies by Dolby decoder,. That's compensating for that.
@@ocaudiophile the LFE doesn’t feel so loud like the bass frequencies of my large front speakers. But maybe I am wrong. As a young father I didn’t have so much time to spend on it yesterday. Will do it again.
Do you know what the timing issue ppm means? Is my laptop to slow. Never got that error/warning when I used my powerful desktop machine
@@Squizzy911 Yes something in the lines causing excessive latency, try switching to ASIO4All, little less user friendly but works like a clock once set up correctly. If you have more than one sub, wait ffor Nexus 2.0 for better bass, I am fixing some bugs related to multiple subs.
@@ocaudiophile i dont have multiple ones. I am glad that my wife allowed me to use a 5.1.2 setup. But a second sub would be too much i guess :D and at the Moment i try to get the best out of my Budget teufel ultima Set 😅
Hey OCA, I've already asked this at AVS, but the question probably got lost in the general anticipation for Nexus :) For users with TS/CH speakers: In order to be able to play the sweeps on these speakers, would it be possible if
I take the sweep from e.g. FHL (or any other speaker except FR) by simply rerouting the cable from the preamp to the power amp accordingly? Thank u so much :D
Cable routing works but timing information will be wrong, needs to be manually fixed. You should be able to play TS by TML & TMR and CH by FHL FHR sweeps though?
@@ocaudiophile Why would timing information be wrong? As far as Nexus is concerned, the information was captured at the TS/CH channel, right?
@CorbyPage I remember that problem the days when I used to switch banana plugs before the atmos sweeps. But when I think about it, I think you're right ;)
@@ocaudiophile Hi OCA, Those that say Top when you configure the receiver as atmos are heard in height, either Front or Back, but on the sides, never in TS or CH. In any other configuration (including Auro 3d), the top files sound in the surround channel.
@@aldofigueroa4758 Switch plugs for TS and CH.
Spent half of the last night of watching a tutorial and taking my measurements. Went to the office with red eyes :) I will do more after calibration measurements later, but I wanted to ask why it sets my both subs -8 db lower than MultEQ and A1 Maestro? I do have two SVS SB-3000 and their level is set to -17 db and -19 db, basically right in the middle of MultEQ XT scale during Audyssey calibration.
Does it sound 8dB lower, or too quiet in general?
When messing with MSO a while back, I noticed Maestro started setting my subs lower. Still, they sound just as loud, if not louder. Volume knobs remain the same.
I assume maybe since MSO cleared up lots of the nulls and dips, Maestro maybe had to boost less to achieve the same perceived loudness.
Maybe Nexus was able to align your subs so much better than Maestro, that it was able to reduce the trim on the subs by 8dB and still maintain target levels?
Nexus has a quite different volume alignment algorithm and then there's anti Audyssey auto-leveling added to each speaker/sub volume. Each setup is unique, don't get stuck with figures as mentioned below, listen to your system first.
Yes, you can hear it. That's how I noticed it in the first place. In the beginning I thought that I forgot to turn on my subs after measurements. There was no bass at all. I increased those values after calibration and now it's back.
@@dovydasvilkelis6881 Not sure if this helps, but my first try with Nexus 1.0 and original sweeps gave me a SW1 and SW2 at - 6 dB, normally all EVO versions after 1.3x has been around + 2dB. In other words not much bass there. So yesterday I redid measurements, same as before, 3 measurements pr speaker without moving mic. But yesterday I used Nexus 1.1 and the new trueHD sweeps. And in the ASIO4all setting ticked the always up sample to 48kHz box (did this since REW gave warning about sample rate, don't know why, it didn't the day before). Results were SW1 and SW2 back to + 2dB and great bass again. Not sure what did the trick or what happened the first time. But maybe you just need a second attempt.
I redid all my measurements with latest Atmos sweeps. 3 measurements per speaker per position (99 measurements). I ran Nexus 1.7 and now it sets SW levels exactly 8 db higher, so I guess it was something with either my previous measurements or a first script version. Thank you for the help. I'm just not sure why some Nexus versions ask me to change SW1 polarity and others ask to leave it as it is. If I do it, I have a big drop in bass region, it looks like SW cancels out each other? Not a big problem, just curious :)
Hi OCA, hi people, if you measure with the AISO4ALL and the provided sweeps, do you use the +10db SW sweep or the +0 dB SW sweep for the measurement? Thanks in advance. Very much appreciated.
SWx.mlp
I'm stuck at the mic centering part. The right speaker is my reference. When I move the mic and test the left speaker measurement, it shows the same distance no matter where I place the mic. I ran multiple left speaker measurements and they are very similar. I am using the audyssey mic and the denon avr-x1700h. Im losing my mind. Dont know what the problem is and why i cant seem to center the mic.
might be my windows settings with mic. I also used mic array as the default realtek mic had a low input in REW.
I have an insane amount of extra bass with Nexus. I must be doing something wrong as the final calibration trims subs to +8. I have 4 subs through MiniDSP and reduce the gain through dsp during Audyssey app cal to green zone. Bass is even louder in non DEQ version. Any ideas what I’m doing wrong?
On a positive note, my bed layer and ceiling speakers seem much more time aligned with much better continuity. I think once I dial in the bass this will be substantially better than Multeq-X. Thanks to OCA for surpassing what a large company can do!
Maybe use SWx +10dB sweep while measuring.
Were you able to sort out the insane amount of extra bass issue?
@@bschalker Yes, I just followed OCA’s suggestion to use the +10db SW sweep and we’re good now. I don’t think I’ve made any minor adjustments to the SW trim to suit my taste either.
Question OCA:
1) Per the video instructions, how come the center channel is not measured?
2) I have 2 subs, do I use the same SWx.mlp to sweep for both sub by isolating and testing 1 sub at a time? How about the naming convention for the subs? SW1 and SW2?
Thanks
Nexus uses FL distance in the ady file as a reference but it's symbolic, time differences between speakers are aligned. Yes to all other questions.
@@ocaudiophileI'm getting error "unmatched speakers were found: in uploaded calibration file (. Ady): C.. I ignored this since in REW measurement, per the video instruction, we don't measure center. It then started calibration and stuck under "calculating average target volume level at listening position". More than 15 mins, and no reaction in REW. Any tips?
@@vick REW measurements will only override subwoofer configuration in the uploaded ady file. Error tells you you have a center speaker in the uploaded file but don't have any measurements for it in REW. Speaker configuration in the ady file should be identical to what is in REW.
@@ocaudiophile the file to be uploaded before starting calibration is the initially generated aud file right that was sent to the AVR?
@@ocaudiophile any suggestions to circumvent the center channel error I'm getting? My .ady file has center (isn't everyone's AVR the same)? Or do I just make a center channel measurement in rew to not have the error? I followed your instructions to the "T".
To start with thank you for all the hard work you put in to this!
I have a question though.
After running nexus some of my speakers are crossed over below their spec sheets minimum Hz range.
Should this be adapted after Nexus ran?
E.g. center channel is 40hz where datasheet says 90hz
Dolby atmos reflekt speakers are set to 100hz where datasheet says 150hz.
Can you give a bit more explenation on this?
"Above crossover settings are calculated to be optimal. If you wish to change them, use speaker XO customization tables inside the script."
Please advice, tomorrow I will test the results.
Room gain is added to your speakers and Nexus shows where their bass roll off starts in your room. If you want to change the crossovers, do it by customizing the script. There're instructions in Evo Maestro logs on how to do that or you can read the comment lines in the script.
@@ocaudiophile worked like a charm, want to be sure that outputted stuff is not distorted by exceeding speaker specs.
Will be testing later today.
thank you so much
@@ocaudiophile after Nexus has ran, and I set my LPF for LFE to 250 and Front (full range) to 250 as Nexus says..
What setting should i set under audyssey=>MultiEQ XT32 => Reference, flat, off, bypass L/R, ..
Also, I find the LFE effects are a bit on the underwhelming side...
what is the best solution to correct this without losing balance.
(Denon AVC-3700H)
Please advice.
The overall sound on the plane and Atmos is already night and day.
Expect a contribution for your hard work.🙏
@@siberteeckhoudt9932 Audyssey should always be set to reference (the optimized ady file already does that for you). You can increase the volume of the LFE channel if it's not already at 0dB. If it is, then just increase sub volume as much as you want.
@@ocaudiophile now running the 10db curve and that set my Subbs at -2 -8 which I set to 0 and -6 now.
running dual Teufel S6000SW in THX mode. with ultima40 front, centre and ultima 20 for surround and surround back, reflekt for atmos.
7.2.4 in other words.
Is it normal that I have to screw the bass up that much to get some feelable impact of the subs. e.g. fly over at beginning of TopGun Mavrick (bluray).
These subbs are supposed to be already a bit of overkill for my 6x3m setup in the livingroom which is larger than the setup floorplan.
wondering if the LPF for LFE and Front (large) both set to 250Hz might be the cause ?
I find the Harman Kardon curve overall more pleasing to the ear, especially for music, but lacking bass even more for Atmos movies.
Please advise me on this one last query.
Hello OCA! What great work you have done with all the evolutions of A1 / Nexus - bravo! Exploiting the full potential of our AV gear is exiting and makes so much sense.
I have a question in relation to your recommendations re. MiniDSP - you advise us not to use this, as it introduces too much delay in the sub channel(s). In my case I have the Denon AVR-X4400 with two sub outputs, running my 5.4.4 speaker setup, the subs through a MiniDSP. With four subs and only two sub outputs from the AVR, how do you propose to align the subs? Previously, I have used MSO to align the subs via MiniDSP, and then run A1 / Nexus set to one sub, treating the aligned 4 subs as one sub.
Many thanks in advance for your inputs 🙏
In the case you have 4 subs and a receiver with only 2 sub outs, best option is to use the MiniDSP. Just make sure you use max 5-10ms delay between subs in MSO for optimization.
@@ocaudiophile Thanks for rapid reply👍 I will continue with MSO / MiniDSP, and minimize delay between subs. Merry Christmas when you get there...
In the video you are using 256kMeasSweep_0_to_24000_0_dBFS_48k_Float_L_refR, but in the Drive folder we got 256kMeasSweep_0_to_24000_-12_dBFS_48k_Float_R_refL. It's -12dBFS and FloatR_refL, not 0dBFS and FloatL_refR. Can you help me with this problem?
You are right, they were changed after the video but YT doesn't let you edit videos. Use -12dB with comfort and FL as reference. The sweeps are now set that way. Also don't forget to try the new Neuron with your REW measurements.
@ocaudiophile I measured my system with Rew for the first time, and I got weird results in Neuron. After watching your video multiple times I finally got the source of my problems. I was using the new sweep file with the old settings. Thanks!
Hi OCA! Thanks so much for this. I recall, from past tutorials from you, that we can use the center speaker (when available) to align distances and calibrations in REW. For that one should choose "C" instead of "FL" or "FR"?
Sweeps send acoustic refenrrce to FR but you can find ones with C in older videos
Drag and drop of the txt files into REW doesnt work. Is ther something i can do about it?
Great Work! One question regarding measurement DEQ ady file, for some reason my subwoofer is set to -12dB level, surrounds and center have crossover at 40hz(not full speakers). I've manually set them to full, but do I need to set subwoofer to 0dB or keep it -12dB? I have Denon AVR-X2800H if that helps.
Use "force large fronts" option before starting Nexus optimization and keep those settings for your SW volume.
@@ocaudiophile sorry for confusion, I've meant that settings set by "REW measurement mode file (.ady) w/Dynamic EQ ON" have SW volume -12dB and crossovers 40Hz for center and surrounds.
In your part 1 video you showed that those REW measurement settings should be all on Full Speaker mode and that should be set automatically by REW measurement .ady file.
I've manually changed all speakers to full size, but I'm not sure about SW volume level for REW measurement, it should be 0dB or -12dB in AVR?
0dB but why not use the REW measurement mode ady file that will set these for you?
@@ocaudiophileI've used REW measurement mode ady file, but I have strange bug in my receiver that any .ady file doesn't set correct level for SW, any other channel is correct.
Moreover yesterday I've run Maestro, it calculated SW volume:
[IMPORTANT] Subwoofer - applied adjustment: 6.5dB.
But in generated manualREW_20241002_2026_A1Evo_Nexus_1_2.ady the customLevel for SW1 is:
"customLevel": "3.0"
I've manually adjusted from 3dB to 6.5dB for SW1 in AVR and the balance is now perfect. Should the "Subwoofer - applied adjustment" logged by Maestro be identical as "customLevel" in .ady file generated? Thank you in advance:)
would this calibration be sufficient using only the base MultEQ, not XT or XT32? I do have a miniDSP for subs and external DSPs for other speakers if required, since I'm worried the MultEQ base version doesn't have enough power compared to XT and higher.
If you have multiple subs, I guess you cannot connect them directly to your receiver with base MultEQ anyway so MiniDSP should stay in the chain. Make sure, you don't use long delay values in it between subs.
Does it matter to the script that the time reference for your vlc files is playing out of the front left for me? You always mention its front right in the video.
You are right, original sweeps had front right as acoustic reference but they were later replaced with sweeps which have FL as acoustic reference.
Thanks @ocaudiophile, another leap forward. A process question to confirm measuring multiple subwoofers. After loading the new base .ady config file from Nexus (zero values) - 3800h. I used REW pink random noise Sub Cal SW1 then SW2 (30 to 80 Hz) and then Speaker Cal on FL (500 to 2000 hz) to make sure all levels were the same (75dB), Then identified the center mic position and performed 3 test sets. Nexus script completed with no errors.. House Curve used was the standard HK file as per zip file. Nexus set the SW1 and SW2 at +3db, LFE + Main 250hz. Bass is present but not dominating, vocals are crystal clear. Did I understand the process correctly?. Just checking I understand...
Sound like you did! Make sure you follow up the updates though. There are still bugs being ironed out.
Hi OCA, I have some questions, hope you can help. 1. Is it thinkable to change the workflow like that. YOu take one set of Reference Positon Measurements and then combine them with Moving Mic measurements? 2. I am not able to get my Front speakers to small, as the delay of my Subwoofer array seems to big for Audyssey to correct. That´s a real disadvantage as I run 8 * 18 inches in a SBA and my fronts "only" have 1 15 inch woofer. So I loose alot of headroom here.. Is it possible to lower the set delays for the front (unitl it still can be matched with the closer surrounds), but that would free more delay time for the sub.. what is the max Delay audyssey can handle? 2. I changed the upper frequency limits in the script to 20.000 Hz, allowed 10db boosts, allowed high / low shelf filters, but at the end it is not possible to reach my set target curve. The upper frequency range shown after the optimization in REW always is some db over the target and it also does not quite match at other ranges. Can you tell the reason for that? Is it somehow possible to integrate manually created inverse filters from REW in the process and that these get transferred in to the finaly ADY in the "customerTargetCurvePoints" in all the channels? I really would like to have the option for a real fullrange correction matching my Target curves, that would be great.. Thanx alot
MMM measurements don't contain phase information which makes them unusable for Evo.
The available delay is limited by hardware, nothing Evo can do, you need to find a way to remove filters/wifi dongle etc from your subwoofer's path to improve its latency
Evo limits HF EQ at 1000Hz even if customized to go higher. The default 282Hz will result in the best sound you will hear among all others, trust me, just fix your sub delay.
@@ocaudiophile Hi, I changed that limit everywhere I was able to find it in the script.
Zeile 473: let endFrequency = 20000;// End frequency for amplitude correction filters (max. 20000Hz)
Zeile 1205: endFrequency: endFrequency,
Zeile 1218: if (endFrequency > 1000) (endFrequency = 20000);
Zeile 1219: endFrequency > 300 ? smoothing = "Var" : smoothing = "None";
Zeile 1725: endFrequency: endFrequency,
Zeile 1737: endFrequency > 300 ? smoothing = "Var" : smoothing = "None";
Why are you so sure that 282 will result in best sound? What if my speaker for any reason has 5 db to much in high frequency and I find that annoying? Audyssey out of the box or any other room correction system can fix that. I know that correction of High Frequencies can be an issue, but would be great to get the option at least. For my Subs, I have nothing in the signal path here, these are passive subs just hooked to amplifiers. According to time reference the impulse peak of the SW is 0,53 m away (later) then my FR e.g... So why this cannot be corrected?
Did you find any audible problems in your results with Nexus?
Hi OCA, do we have to center the microphone before taking measurements? The reason I am asking is that my MLP is currently not centered between FR and LR. So I am wondering if it makes sense to measure by setting mic on MLP, which will not be centered OR put mic between two seats which will be centered between mains.
Measure where you sit but this is a difficult position to get great sound.
@@ocaudiophile ok. Thank you. Have a four seats and MLP is the 2nd seat. Currently, the FR and. FL distance measured from this seat is 13.1 and 13.6 respectively. Would that make a huge difference in sound if measured from MLP as you mentioned?