I made my own binaural mic using a pair of Behringer C2 mics and a pair of silicone acupuncture practice ears (plus some other bits). Cost about £100. Works great!
Have you ever heard of the AKG BAP-1000? It was made in the 1990s and claimed to recreate those HRTFs. In my Opinion this whole endeavour is very similar to VR-goggles, which also were already there in the 1990s, but didn't catch on. But then Occulus Rift picked up the pieces and re-ignited the game and finally there was a product that produced the necessary momentum. I am astonished that, with all the momentum in headphone listening _and_ DSP tech, there aren't dozens of HRTF DSP solutions to choose from. Thank you for the demonstration, so weird, that this is the first time I have ever heard a recording made with binaural microphones. It really works perfectly to overcome the in-head-localization. And I can absolutely not understand why anyone would accept listening to headphones without this HRTF goodness. There needs to be an Occulus Rift of headphones. Whoever does it will greatly disrupt the market.
Dont forget the SR3D We place the capsules behind the Tragus for a more realistic and natural sound, other microphones tend not to do this. Indeed the ears are very important for the audio to have notch filtering and reflections that give binaural audio. Our mics are probably the cheapest on the market, and very popular with ASMR artists and field recordists
It didn't sound like you were behind me as much because the L/R was swapped. If you are behind me and come up to my right ear I should hear it as so. I feel like because you were in front the whole time and the L/R was normal, when you turned the ears around the audio should have also reversed channels, but for some reason when you walk up to the device's "right" ear, I hear it in the headphone's left ear.
@@AudioUniversity That is true, I did that as well and could tell. I understand you swapped it for consistency and less variables. I think our brains just naturally use that as a key to understanding the location of the speaker and it caught me off guard. Great video regardless, your channel is a newfound gem for me.
Dolby Atmos (when listened through binaural headsets) is still a form of stereo. I’ve yet to hear sounds appear as though they come from in front, above or behind me. That said, I am listening on headphones with a generalized head related transfer function. Are there any companies out there that make relatively flat sounding headphones based on your exact head related transfer function?
I would say any traditional studio monitor style headphones should help, but having an accurate HRTF to your shape of head and ears makes a huge difference. Some processing systems use SOFA files with parameters for all sorts of different head/ear configurations to better generate a binaural sound "customized" to you. My notebook is connected to a small vacuum tube amp that I connect my modified Sony MDR-V600 phones to and the surround effect with binaural processing is amazing when I listen to something that uses an HRTF fairly close to how I process my own audio. Caveat though; I have not experimented with any Dolby ATMOS mixes so I can't speak to those specifically.
Your either deaf or trolling I hear full 3d audio when using at os and when using soundblaster 7.1 with every si gle source I feed them not once have I not got a full surround experience even in the worst cheapest headphones with a quality dac amp and more expensive headphones it's mind boggling good YOU have to be either deaf or talking bs.....
Great ❤ video, Kyle. I own a Sennheiser Ambeo headset. It has two outer facing binaural mics (L & R), has a built-in audio interface from Apogee, has a dedicated app and works on iPhone and iPad only. I understand the differences between a standalone mic and a headset like mine when recording. But it’s lots of fun to experiment with! Made some awesome recordings this year. Like a thunderstorm above my city when I was at home. It’s awesome. I’ve also got some plug-ins for binaural effects and the Dolby Atmos features in Logic Pro on my Mac 🖥️
For anyone that truly enjoys hifi sounds and care about accurate sound reproduction need to watch this channel. I install very high fidelity car audio where the perfect Environmental is far from attainable. But with proper techniques and tuning using fundamentals I've learned here I've been able to experience alost a perfect studio sound environment with explosive transient attacks and live recordings with detail I've never experienced before. Definitely worth a watch. Also sign up for the news letter. Great stuff in there for the true audiophiles.
Maybe this is a dumb question but when you rotated the binaural mic so you were "behind" it, how come it sounded like you were then on the "wrong" side? When you were to the left on screen, it sounded like you were behind me on the left but should have sounded like behind to the right? Edit: Nevermind! I saw the answer in another comment.
I was talking with Stefan Peus, an engineer at Neumann who was on the team for the KU100 binaural mic. He said that their research showed that most (if not all) of the effect comes from only the first 2 cm within the ear canal. I was surprised to hear that.
Since this is University, can you explain why the virtual barber shop from like a 100 years ago is the best binaural recording in existence? What is that algorithm they speak of that negates the presence of the recording device?
A little bit of science to help people out, since this is a fascinating field that needs its falsehoods fixed so we can make progress. The eared dummy head with dual mics that you show, suffers a "double-ear effect" when playback comes through headphones. I'll explain. First, recorded sound is filtered by the artificial ears. Next, playback of that recording is filtered once again by the real ears. So it's like having four ear: an extra ear over each ear. Therefore, what you are showing here is ABSOLUTELY INAPPROPRIATE for headphones !!! Arguably, this setup is OK for IEM. Except: the brain has learned to process the signals based on what its own ear shapes do to the sound, so while this kinda works on IEM, it would be as if you got alien ear transplants from a donor and it may create a confusing adjustment period (unless the artificial ears were shape-cloned from the individual experiencing the playback!) Headphones have it much easier. The mics can be placed between a sonic separator shield as wide as a head. (Minor improvements may be made by studying and imitating the reflective and absorptive properties of the human head across the audible frequency range, but without any of that, any decent absorptive shield will do a decent job.) Note that even so, this creates what I'd call 2D 360 sound, rather than 3D sound, because vertical directional clues in the soundwave are captured by strange bends and twists in the outer ear and how it eventually channels to the inner ear. For perfect 3D you'd need 4 or more channels per ear. Hope that helps! (Anonymous Ph.D.)
It's not exactly like you are saying. The pinnae is indeed very important for height estimation. If you use earbuds, you don't really hear your ear during playback. In fact, even with over-the-ear headphones, our pina response is more or less defeated by the huge relative size of the closeby loudspeaker. Your ear is receiving sound coming from all directions at the same time. Now I agree that using artificial ear might be bad if they are really different from yours. So the best is to be able to use a recording without ears, and then add your customized digital HRTF while playing back.
$399 for the cheapest version?! I made my own using two lapel mics and a 3D printed body, with two ears separated by a head's width. The mic quality isn't as good, they were $10 from Amazon, but the effect is just as good. Now the question is, do I release the 3D print files to the world, or rip everyone off like this company? Hell I'd make a tidy profit selling them for $50!
This is about the best explanation of this whole complex realm. Thanks a ton.
Glad to help!
I made my own binaural mic using a pair of Behringer C2 mics and a pair of silicone acupuncture practice ears (plus some other bits). Cost about £100. Works great!
Amazing! Maybe post a video about it? I’m also considering building one myself.
Nice! Can you share a tutorial?
Got a bit better understanding about those mics being used in asmr videos. Never thought of the actual mechanisms behind it. Much appreciated!
Thank you so much for this content, the Sennheiser plugin is just what I was looking for!
Thank you for this explination, this one is the best explainations and demonstrations I've seen when reserching into this topic
Glad it was helpful!
3:40 : that was pretty interesting. I saw you in front of me, but the sound was coming from behind me.
Fabulous video - I really love your content. Thanks, you've taught this 50+er so much.
Have you ever heard of the AKG BAP-1000? It was made in the 1990s and claimed to recreate those HRTFs. In my Opinion this whole endeavour is very similar to VR-goggles, which also were already there in the 1990s, but didn't catch on. But then Occulus Rift picked up the pieces and re-ignited the game and finally there was a product that produced the necessary momentum.
I am astonished that, with all the momentum in headphone listening _and_ DSP tech, there aren't dozens of HRTF DSP solutions to choose from.
Thank you for the demonstration, so weird, that this is the first time I have ever heard a recording made with binaural microphones. It really works perfectly to overcome the in-head-localization. And I can absolutely not understand why anyone would accept listening to headphones without this HRTF goodness.
There needs to be an Occulus Rift of headphones. Whoever does it will greatly disrupt the market.
Excellent Video Again! Quite informative.
Thanks Kyle and the team!
Wow.
This video had me blown away when you went behind the mic 🔥
Amazing video so helpful and interesting thanks for sharing :)))
Dont forget the SR3D
We place the capsules behind the Tragus for a more realistic and natural sound, other microphones tend not to do this.
Indeed the ears are very important for the audio to have notch filtering and reflections that give binaural audio.
Our mics are probably the cheapest on the market, and very popular with ASMR artists and field recordists
A very important video and info. Thanks.
Glad it was helpful! Thanks for watching!
Would you consider doing a video on the inverse square law?
I’ve already made one, Mark! Check it out here: ua-cam.com/video/umTSWJ3POOk/v-deo.html
Great information as it applies to real-world sound creation, experiencing and recording!
It didn't sound like you were behind me as much because the L/R was swapped. If you are behind me and come up to my right ear I should hear it as so. I feel like because you were in front the whole time and the L/R was normal, when you turned the ears around the audio should have also reversed channels, but for some reason when you walk up to the device's "right" ear, I hear it in the headphone's left ear.
Yes. I swapped the panning in post. If you close your eyes and listen though, the “behind you” effect still works!
@@AudioUniversity That is true, I did that as well and could tell. I understand you swapped it for consistency and less variables. I think our brains just naturally use that as a key to understanding the location of the speaker and it caught me off guard. Great video regardless, your channel is a newfound gem for me.
Thanks, Nirossen! It was a tough decision - I just kept getting thrown off during editing, so I decided it would be best to change it.
Cool! Are you planning on covering ambisonics as well?
Dolby Atmos (when listened through binaural headsets) is still a form of stereo. I’ve yet to hear sounds appear as though they come from in front, above or behind me. That said, I am listening on headphones with a generalized head related transfer function. Are there any companies out there that make relatively flat sounding headphones based on your exact head related transfer function?
I would say any traditional studio monitor style headphones should help, but having an accurate HRTF to your shape of head and ears makes a huge difference. Some processing systems use SOFA files with parameters for all sorts of different head/ear configurations to better generate a binaural sound "customized" to you. My notebook is connected to a small vacuum tube amp that I connect my modified Sony MDR-V600 phones to and the surround effect with binaural processing is amazing when I listen to something that uses an HRTF fairly close to how I process my own audio.
Caveat though; I have not experimented with any Dolby ATMOS mixes so I can't speak to those specifically.
Your either deaf or trolling I hear full 3d audio when using at os and when using soundblaster 7.1 with every si gle source I feed them not once have I not got a full surround experience even in the worst cheapest headphones with a quality dac amp and more expensive headphones it's mind boggling good YOU have to be either deaf or talking bs.....
Great ❤ video, Kyle. I own a Sennheiser Ambeo headset. It has two outer facing binaural mics (L & R), has a built-in audio interface from Apogee, has a dedicated app and works on iPhone and iPad only. I understand the differences between a standalone mic and a headset like mine when recording. But it’s lots of fun to experiment with! Made some awesome recordings this year. Like a thunderstorm above my city when I was at home. It’s awesome. I’ve also got some plug-ins for binaural effects and the Dolby Atmos features in Logic Pro on my Mac 🖥️
Very cool, Emiel333! Thanks for watching and sharing!
@@AudioUniversity Thank you for your kind words and reply, Kyle. Really appreciate it.
I have this mic. It is amazing!
This is it!. 😉 Thanks Kyle. Next video: all about Dolby Atmos, maybe?
That's a great idea, Dewa! I'm currently researching Dolby Atmos to make a video for you!
@@AudioUniversity I am so excited
For anyone that truly enjoys hifi sounds and care about accurate sound reproduction need to watch this channel. I install very high fidelity car audio where the perfect Environmental is far from attainable. But with proper techniques and tuning using fundamentals I've learned here I've been able to experience alost a perfect studio sound environment with explosive transient attacks and live recordings with detail I've never experienced before. Definitely worth a watch. Also sign up for the news letter. Great stuff in there for the true audiophiles.
Maybe this is a dumb question but when you rotated the binaural mic so you were "behind" it, how come it sounded like you were then on the "wrong" side?
When you were to the left on screen, it sounded like you were behind me on the left but should have sounded like behind to the right?
Edit: Nevermind! I saw the answer in another comment.
Wouldn't a "head" require a nasal cavity and aural canals to mimic how we hear?
I was talking with Stefan Peus, an engineer at Neumann who was on the team for the KU100 binaural mic. He said that their research showed that most (if not all) of the effect comes from only the first 2 cm within the ear canal. I was surprised to hear that.
Where can I get the Dolby Atmos head mapping app?
Brilliant relaying of key principles as asual...tho I can't see myself spending $5k on a microphone...that's an entire studio for me lol💯👊
Love the video man~!
Glad you enjoyed it! Thanks for watching!
if you dont move can you feel where the sound from？
1:06 And sometimes LSDs XD
Since this is University, can you explain why the virtual barber shop from like a 100 years ago is the best binaural recording in existence? What is that algorithm they speak of that negates the presence of the recording device?
A little bit of science to help people out, since this is a fascinating field that needs its falsehoods fixed so we can make progress.
The eared dummy head with dual mics that you show, suffers a "double-ear effect" when playback comes through headphones. I'll explain.
First, recorded sound is filtered by the artificial ears. Next, playback of that recording is filtered once again by the real ears. So it's like having four ear: an extra ear over each ear.
Therefore, what you are showing here is ABSOLUTELY INAPPROPRIATE for headphones !!!
Arguably, this setup is OK for IEM. Except: the brain has learned to process the signals based on what its own ear shapes do to the sound, so while this kinda works on IEM, it would be as if you got alien ear transplants from a donor and it may create a confusing adjustment period (unless the artificial ears were shape-cloned from the individual experiencing the playback!)
Headphones have it much easier. The mics can be placed between a sonic separator shield as wide as a head. (Minor improvements may be made by studying and imitating the reflective and absorptive properties of the human head across the audible frequency range, but without any of that, any decent absorptive shield will do a decent job.)
Note that even so, this creates what I'd call 2D 360 sound, rather than 3D sound, because vertical directional clues in the soundwave are captured by strange bends and twists in the outer ear and how it eventually channels to the inner ear. For perfect 3D you'd need 4 or more channels per ear.
Hope that helps!
(Anonymous Ph.D.)
It's not exactly like you are saying. The pinnae is indeed very important for height estimation. If you use earbuds, you don't really hear your ear during playback. In fact, even with over-the-ear headphones, our pina response is more or less defeated by the huge relative size of the closeby loudspeaker. Your ear is receiving sound coming from all directions at the same time. Now I agree that using artificial ear might be bad if they are really different from yours. So the best is to be able to use a recording without ears, and then add your customized digital HRTF while playing back.
How does the Smyth a16 realiser accomplish this? Isn't their mic placed in the inner ear?
Wow, thank you
Glad you liked it, Samuel! Thanks for watching.
$399 for the cheapest version?! I made my own using two lapel mics and a 3D printed body, with two ears separated by a head's width. The mic quality isn't as good, they were $10 from Amazon, but the effect is just as good. Now the question is, do I release the 3D print files to the world, or rip everyone off like this company? Hell I'd make a tidy profit selling them for $50!
4013 Rath Loaf
Thank you
Thanks for watching!
❤️👍❤️
👍🙏💚
Why dont we have 4 ears😂