Sound dampening from moving blankets? Really?
Вставка
- Опубліковано 2 тра 2015
- Here is the cheap way I took to dampen the echo in my studio. Moving Blankets. What do you think? like the lav mic or the new boom mic with the dampening? Recording done with a Rode NTG2.
Royalty free music from incompetech.com - Наука та технологія
if you suspend the blankets away from the walls by 4 inches it will deaden the room even more. This is the case because it forces the sound to make two passes through the blanket, rather than just once. When it travels through the blanket, it bounces off the wall and makes a second pass through the blanket, further deadening it.
Larynx Suit Awesome comment. Thank you. I always heard it was better to have in front of the wall a little instead of directly on it and wondered why and you answered my question. Makes perfect sense.
That is not true. When the sound hits de wall and comes back, it must to pass necessarily a second time through the blanket´s thickness. The blanket can be stick to wall or 4 or more inches away from the wall, but the sound necessarily makes his way back through the blanket´s density a second time. It is physics.
Don't forget the wavelength of the sound. If it is only 5mm of the wall it works best for very high frequency. For the midrange it works better with some cm of distance. Ideal is 1/4 wavelength for the lowest echo-frequency you want to absorb fully (i.e. 7cm or 3in for 1kHz).
Actually what it does is break the standing wave not exactly deaden the room... though you may hear it as such....
One flat layer is useless.. But doing do squares different distances away from the wall and corrugate egg cartons would help it breaks up the sound more..
VERY impressive! I do a lot of professional audio work, and I noticed a HUGE difference. Thanks for posting this GREAT comparison!
Very smart to use moving blankets. Cheaper, prob. just as effective as the sound blankets and keep your money for the important stuff. Nice job. Thanks for showing us.
In case anyone is curious, they are worse than sound blankets. But $40 worse? I think not. People will care much more about sucky music, or being bad at whatever you're recording.
Thanks for sharing this video. I'm in the process of building my booth and this was perfect. Will definitely use these blankets. 👍
I am doing this myself right now...thanks for the idea!! $40 is a much better risk than $760!!
it's been 3 years, did it work for you?
Greg Rempe it’s been 4 years, did it work for you?😅
@@ebrahim6319 worked like a charm!
@@ebrahim6319 lol the other guy had to wait a year for this lolz
@@lofiheart444 heheeh maybe didnt get notification as ya know how silly YT is
Awesome. I input a search to see if anyone else had ever had the bright idea to try moving blankets for dampening... so glad I did! Your before/afters were convincing enough to motivate me to give it a go... I think it'll be well worth the difference. Pretty sure that adding a few blankets to the ceiling and some foam to the corners would be worthwhile, as well. Thanks so much for the very well-done vid!
Sounds great big improvement
I doubt you're still using this but a quick tip to anyone who's planning on using this: hang them as you normally would, but lease slack enough for a "pyramid" place an object in the center at least 3 inches long it may not sound like it does much but it does indeed help by reflecting the noise in another direction and trapping the noise between the wall, also cheap amazon bass traps work well with these.
Awesome thanks for that tip!
So I have a loud roommate and want to try this so I don’t hear him on the other side of the wall. If I hang these up will it help lower the noise or will it only help quiet my room?
Wow, made a significant improvement. I have an unfinished basement and with nearly 1000 square ft of space and concrete floors and half walls (traditional wood framing/dry wall on the top half and 12 ft tall ceilings with the sub flooring of particle board exposed along with the raw wooden beams. I was thinking about building make-shift blanket walls with a 2x4 frame of sorts and putting inculcation between my rafters.
Definite improvement. You can barely tell the difference between the lav and the boom mic now. I don't know how much it cost, but in my opinion it was definitely worth it. I might have to get a couple of those blankets to experiment with.
We've always called furniture pads, moving blankets, "sound blankets" I had studio with 18 feet ceilings, it was 30 feet wide and 60 feet deep, we built sets in there, and if wanted to kill the reflections, we had 6 by 6 frames of 1 by 4s...... we stapled the blankets to the frames shaped like a curtain, using C stands or whatever we needed, we hung those things all over the place, then over the talent, on both sides of the talent...... whereever..... the space was just not fit to shoot sound in without those blankets..... but they solved the problem, we also had a recording room for Voice over and such, we covered the walls with all black blankets, again we bunched it so that it had waves in it...... and it looked good too..... and when we left, we took em with us....
I really loved this video, it was so personnal...
Bravo on this video. Great example of how effective these were. Loved the end with the comparison.
Also.... I sell moving blankets. Seriously. But I'm also looking into cleaning up my sound for my new Sennheiser MKE 600. I'm going to grommet them.
One of the Best Ideas of SoundProofing is "SoundProof Curtains" it actually Block outside Noise coming from Windows. Check Here: livesoundproof.com/best-soundproof-curtains/
Quit saying you aren't superb! You're doing great. Thanks for the video, bud.
This is the same scenario that i'm in. For the price it's totally seems worth the investment. Thanks for this demo video.
You did a good job and it worked. 👏
It's like night and day! sweet!
Awesome video. Definite improvement.
I love it! I think the Harbor Freight blankets seem to be working well..Anything is better than a solid flat surface. I'd stay and chat but I have some studio walls to cover. Thanks!
Huge improvement. I searched for this video because i planned on doing same thing
You done a great job. Your sound is perfect. I done the same thing for my drum recording room in my basement, concrete floor and walls it was very bright through my mics. My floor I just bought a 12'x18' area rug from Amazon for $180.00 very good deal.
Big difference!! I actually done this in my basement studio, big change in sound!!
Before: 0:57 After: 9:28
ur my hero
And the Nobel prize goes tooo !!!!
Thats pretty massive change
This should be the top comment.
One of the Best Ideas of SoundProofing is "SoundProof Curtains" it actually Block outside Noise coming from Windows. Check Here: livesoundproof.com/best-soundproof-curtains/
the recording sounds much better after the blankets. good job
This Sounds GREAT
What did you use to hang the moving blankets? Great Video...
Very helpful! I just bought 12 blackest for $120. Going to install grommets in the blankets, and hang them 6” - 8” from walls in certain areas of my studio. Also going to use them in and around acoustic drums (front, back, sides - sometimes doubled-up) kinda like an temp isolation booth for drums 😀 we’ll see if it works.
Definite improvement for the boom Mic. Even though the levalier Mic is the loudest, the boom Mic room mod is definitely more cleaner and has a better quality.
I think it was a fantastic idea, and I bet if you can get more blankets to cover the room entirely, it will definitely minimize the echoing.
Ruck Yeah I think if I did try to cover a lot of the ceiling, I could lower the blankets and overlap with the new ones. but for now I think it does pretty good. I will have to wait till after a few more shoots.
This is the great thing of making videos. Lots of good and constructive feedback. Love Harbor Freight. I did the same thing with blankets, suspended 2 inches from the wall. I then also made a box with acoustic foam just for the mike. I use the Audio-Technica 2020 and my Bose 700 headset that gets its audio straight from the mike. Since is is great noise canceling I can hear EVERYTHING the mike pics up. I use Audacity and a teleprompter made from a bankers box with a piece of Lexan and my Nikon D7100. Pretty happy with it all. I make educational training with Camtasia 2019 and Adobe Premier Pro CS3.
Great vid bro,
Offing your presentation so far! Jesus loves you. Keep going my brother
couple of other suggestions - booming the mic from above just out of frame will get it much closer to your voice - big improvement, Also, shotguns aren't great for indoor dialogue due to the interference tube design. can really mess with any reflections / echo etc. A cardioid condensor mic copes much better. The blankets are still a very good idea even with tips
Great Video! I am going to Harbor Freight to buy my moving blankets. Thanks!
Good job men, tnks very usefull. and cheap
You just saved me wasting $203 on acoustic blankets. The before and after sound improvement is phenomenal.
Some helpful information for anyone interested in sound absorption: The way sound occurs is by the oscillation of molecules. This happens over time and distance. Tone (or frequency) is a measurement of how many times that molecule osculates back and forth in one second -- amplitude (or volume) is how far in distance it oscillates from it's neutral position. This oscillation of a molecule creates oscillation in other molecules through momentum transfer. The measurement of space between a highly condensed area of oscillating molecules to the next highly condensed area of oscillating molecules of any given frequency is known as the wavelength (think of a wave; it rises up then falls back down. The peak is the spot of highest condescension). Each tone (or frequency -- measured in hertz [Hz]) has a different wavelength within one cycle. The lower the frequency, the longer the wavelength. Now, the way absorption works is by taking that energy from the oscillating molecules and dispersing it (converting it to heat via frictional absorption or movement via flexural absorption) so the oscillation of molecules stops. In order to adequately absorb a sound wave, you need to be able to absorb 25% of it's wavelength (in frictional absorbent materials such as blankets and acoustic foam, this equates to thickness of material -- There's a completely different formula for flexural absorption and diffusion I won't get in to). So let's say you have a 250 Hz sound wave. The wavelength of this frequency is roughly 4 ft. Using the 25% theory, you would need 1 foot depth of frictional absorption material in order to effectively absorb this wave and create no reflection or sustain. The general range of the human voice while talking is roughly between 85 to 250 Hz so you need more material than you'd probably think to completely kill this wave. To address some of the concerns around how far out to place this material from a wall (or reflective surface), the simple answer is: yes, distance does matter. While it's true a sound wave will pass through the material twice regardless of distance from a wall, this second pass through is considered an early reflection and doesn't contain the same momentum/amplitude as the original pass because some of it has been absorbed/displaced by the frictional material (blanket) and some of it has been absorbed/displaced by the wall (acting as a flexural absorber...unless it's pure concrete). With this second pass through, you're now adding in a decay factor to the waveform: it has been absorbed twice and carries less amplitude (or decibels) so placing this final stage of absorption a greater amount of cycles (or space/distance) away from the reflection point is going to increase the effectiveness of your absorption material. In summary, material (both type and amount) matters, frequency matters, and distance matters. I did really like your video. My suggestion (if you haven't already moved on from this set-up) is to use the blankets you've already purchased to create a small vocal booth (PVC pipe as the structure, blankets as the walls). Layer them a couple layers thick around the "walls and ceiling" of the booth and use you're boom mic to do overdubs of your videos. If you place this booth in the center of a room, I'd be willing to bet you get some outstanding results in terms of your recorded vocal quality. Either way, great video and thank you for taking the time to make it.
that was a very good explanation! building a vocal booth that way would be soundproof as well? so the neighbours wouldnt hear you singing? Many thanks!
let's put it this way . . . for the price NOT BAD AT ALL , HUGE difference !!! :)
lol just realized my outro is messed up. oops...Pizza was getting cold on me.
Dude - it's Pizza … no need to apologize.
It does sound BETTER... but I still hear some echo. I wonder if the U-haul blankets would be comparable in cost, but maybe thicker and would work better. I would like to help a gradeschool teacher who has HORRIFIC room echo problems. So, I really appreciate your video you made. Thanks, it helped me see that the moving blankets DO work... but might need to double them up, or purchase the thickest ones per dollar.
amazing i could hear the quality of the music change as you were putting the blankets on the wall
Doesnt really work that well if you just pin them to the wall. The whole idea with the blankets is that you gotta give them space to move in order to absorb the vibrations and transform it into kinetic energy. So, my advice would be to HANG them by the ceiling a few inches away from the wall so they can actually DAMPEN the sound more efficiently. Also they're best used folded in two layers. Hope this helps, cheers!
So I have a loud roommate and want to try this so I don’t hear him on the other side of the wall. If I hang these up will it help lower the noise or will it only help quiet my room?
Thanks for sharing .I need to do this not for recording,But for upstairs neighbors.I stay in an Apt.And they have kids running around.So,this would be up my alley..Once again thanks for sharing..I may have to do the walls and ceiling.
these work great for sound echos during recording...not sure how well will dampen foot steps.
@@Bytemybits yeah, these dont have the mass to stop sound much, just reduce echo
The proximity effect is what you're experiencing. The closer the mic is to the source, the less "Room" you will get in the audio. This is especially important to remember when recording on location or outside the studio.
Blankets worked well though.
There was a noticeable improvement.
What is the music you used in this video? I'd love to find it. Otherwise, great post and thanks for sharing!
I get my music from artlist. artlist.io/Jason-17602
works pretty well, still has a tiny bit of echo. you should cover the tops of the walls and the ceiling and do another before/after/after
and floor
Carpet or rugs would make rolling stands more challenging.... but would help also.
Very nice! would duvets be better and cheaper? With them being white it would help with lighting.
A lot of those reflections are still there. You need to get those corners where the walls intersect and the back of the door (close the door). Covering every inch of the walls is a waste of the blanket space. Just spread one blanket on the center of each wall. Good idea by the way.
Shotgun condenser microphones like the Rode NTG2 are usually not recommended for recording dialogue indoors especially in reverberant rooms. Shotgun microphones are really good at canceling out high-frequency sounds from the sides, but not very good at canceling out low frequencies. often you'll wind up with some wonky sounding stuff. That is to say, it's not impossible to get great sound in a reverberant room with a shotgun mic (as you demonstrated, great job) it is not however ideal. I suggest trying a small diaphragm cardioid microphone. There exist two good options below $100, first is the Senal SCI-3212, If you're willing to do some noise reduction that's a decent one. Neewer also makes a pair of such mics, I haven't tried them myself but they come in a pack of two for just under $80.
How are you attaching them to the wall? I want to do this in a rental room to prevent noise from outside coming in (from other tenants through the walls), so dont want any damage to the walls. Would this be effective in reducing noise from outside coming in?
There is a definite sound improvement but as Pete Styles said. Move your boom mic onto a boompole and have it about one foot above and in front of your head. You have good equipment.
Both sound good. The boom mic is definitely a bit more crisp but I wouldn't care or probably notice without a comparison.
What's the point of having the blankets behind the green backdrop though when the green backdrop itself acts as a sound dampener/diffuser?
MsHojat Cause the green screen is super thin. The moving blankets works as they do because of how thick they are.
Def sounds better, don't forget you should play with the position of your mic too. Not just on the side pointed at you but high central position a little out of frame, above you & pointed at you. Too much dampening will give you a dead sound tho....
For room deadening, there are way better DIY solutions, the method you tried will improve echo but only in certain frequencys, Just buy a couple 14cm thick Peaces of acustic Foam and cover about 40% of the walls, your results will be way better. Another alternative wold be adding base Traps to the corners of your room
this is a bit funny, i just started working at harbour freight, and i have been eying these same blankets for the same purpose lol
Well it definitely tamed those reflections.
You're gonna keep hearing reverb in the boom mic unless you actually put it in front of you. Most of the sound from your mouth is going forward, and if your mic is to your side, it's going to pick up a lot of reflections and not a lot of your voice.
My rear wall of my studio is the back wall of my neighbors TV room. I measured that wall to be 8 x 12‘ wide I Purchased six sheets of half-inch sheet rock ienough studs enough studs to build a replica wall. I built it in three sections 8’ x 4’ which happens to be the exact dimension of a sheet of drywall I did not insulate the interior left it empty. Then mounted to fake wall 6 inches away from the real one behind it using weatherstripping all the way around the perimeter and in between the three sections Which are fastened together with 3 inch decking screws at a 45° angle. Carpenters know what I’m talking about. There’s a zillion ways to attach the stuff this is just what I opted for. I have a decimal meter on my phone I don’t know how accurate it is but went next-door to my neighbors and have her look in amazement as my buddy cranked his Marshall on the other side of our wall of Doom. I was amazed as well, we observed a 22 dB drop. Down from 105 to around 82 or 83 dBs. And this is with his Amp turned up to five. That is insanely loud, we hardly ever turn up past 1 1/2 maybe two using 30 to 50 W amplifiers. The panels measuring 8 x 4‘ x 4“ thick deep cost around $60-$80 apiece depending on your materials. I opted to a simple mind using screws and liquid nails. That stuff cost a little more. Anyway good luck. I know my neighbor and I get along a lot better now.
1. Your Before sound is pretty good to start with. 2. The blankets did seem to make a bit of a difference. 3. As someone else suggested try suspending the blankets a couple inches from the wall. The air gap might help. 4. I wonder if hanging the blankets so that they have some pleats or folds might also add some dimension to create some diffusion. Good luck with your channel. I found your video in March 2020. So how's it been going for the past five years?
A PVC pipe framework can be cheaply constructed to suspend blankets above if you think you need that. You might not even need to glue it. Slip the legs behind your wall blankets, or pad them individually. Whatever works for you. You'll need a grid to attach to from underneath, or to lay your blankets on top of. You've already improved our sound quality, so maybe no need for that. GBY.
folding the blankets in half and tacking them up works good. Bath towels work good folded in half too. But , you should do the ceiling too.
It definitely sounds alot better.
Sounds a lot less echoey, nice!
I'm wondering if I can just use thick blankets, I can not find moving blankets where I live.
Good, what are those blanckets material..? Is it a specific cloth with a foam layer like a carpet or something?
It's a blend of different fibers... Nothing like bed comforters or carpet fibers... Also the specialized stitching and weight of the blankets makes a difference. Each blankets need to be at least 6 pounds in order for them to work. The heavier the better... The ones I have are about 7 1/2 pounds each...
What did u use to hang the blankets to the wall?
Think you should do the before and after saying the exact same phrases to control variables would help with the comparison.
How are you pinning them to your wall? Are you using heavy duty tacks? Do the blankets have gromlets? Do they stink?
Do these keep noise from going through walls?
Sounds much better.
You have to get the thick fabric quilt ones you can use the ones that have the nylon outside but the quilt ones work the best, I got mine super cheap from a uhaul place because I bought the ones that had holes in them and I layered the walls then used some cheap foam from amazon and it works amazing.
yes, totally agree. get the thick fabric quilt ones from a moving place. i attached mine using staples.
yeah man, huge difference. much better.
Reminds me of Zeos and DMS doing HiFi Guides Room at RMAF 2019.
If you were to pull the blankets from the wall and hang/ suspend them from the ceiling around the space in stagger formation it would absorb the sound traveling around the room much better.. it was a big difference. I would also agree that the boom mic was to far away ..
What it would be better if you put a moving blanket on top of another moving blanket.or do you think 1 is good enough?
one worked great for me. Id say start with that then add if needed.
alright thank you for the awesome vid
If one had to put this video into the dewey decimal system where would it be? 000 - Generalities or 600 Applied Technology?
It sound way better. Maybe a few bass traps would make it awesome.
Honestly, I really like the audio from the little lapel mic, but that's just me.
What are you using to hold up the blankets?? Push pins??
Much better. Those same blankets are in my recording studio. Can't beat them for the money.
agreed!
I know this is an old video but curious why you chose to use the curtain instead of the green paint!
The chroma green paint I got didnt cut out well in editing. The deeper green of the cloth also had less glare. Was just overall, way better.
Byte My Bits Awesome! That paint is expensive so I'm sure it is a much cheaper option anyway.
What are you using to hold the blankets onto the wall? Is it just clear thumbtacks ?
$60 well spent. It help a lot.
what did u use to stick them on the walls?
thumb tacks lol
Wat kind of hooks or nails did u use in attaching those blankets?
thumb tacks lol
I went to harbor freight and picked up some moving blankets and invested in a staple gun. Cheap and easy!
Thanks!
I plant on buying some metal rods and just creating like a shower curtain so I can just move it and swing it around the mic and creat a psuedo booth effect.
Dope idea. I'll probably try that in my br studio
What you are experiencing is reverberation, not echo . You also may get a better response if you create a curve in the corners of your room
a curve in the corners of dis dick
@@juggalouniversity8386 LMAO
Where did you buy your blankets?
Onion Rings he said harbor freight, I believe..
Gee, just like in school you still don't pay attention and would seem to have no idea how to repeat the video... guess this idiot has an audience of even bigger idiots like you...
How did you hang the blankets up?
That definitely worked...
You did a great job buddy. Keep up the good work. You just made my behind go to harbor freight and pick up some blankets. LOL. Thank you take care
What did you use to stick them to the wall?
gRAMS LOVE DID THE TRICK LOL
did u use thumb tacks to place them on the walls?
yes
of course
How in hell did you do with the fan noise? XDD
great fcking video Bro! u did Awesome!
One of the Best Ideas of SoundProofing is "SoundProof Curtains" it actually Block outside Noise coming from Windows. Check Here: livesoundproof.com/best-soundproof-curtains/
Dampening or damping?
Looks like a really dangerous Fire hazard
10:44 for the before and after. HUGE DIFFERENCE!
It sounds better in my opinion!!!