binaural synthesis of spatial audio systems on headphones

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Capoeira
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binaural synthesis of spatial audio systems on headphones

Postby Capoeira » Sun Sep 01, 2019 8:53 pm

So I have been playing around with this subject since I found out about https://github.com/ShanonPearce/ASH-IR-Dataset/wiki
what Shanon did with the dataset kind of messes up the low end (also the virtual space imo),
So I use the original "WDR Contol Room 7" IRs from here: http://audiogroup.web.th-koeln.de/wdr_irc.html
It sounds great imo. I made a little demo of it: https://www.youtube.com/watch?v=P1C08_IhsTo

I have also played around with most of the comercial solutions mentioned here https://vi-control.net/community/thread ... ack.72822/ and also the Waves Abbey Road Studio one and nothing comes close to "Control Room 7"

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Re: binaural synthesis of spatial audio systems on headphones

Postby bluebell » Mon Sep 02, 2019 7:25 am

I have big problems hearing the difference to traditional mixes. Could you provide some audio that switches between traditional and binaural mix every couple of seconds to show the difference?
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AlexTheBassist
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Re: binaural synthesis of spatial audio systems on headphones

Postby AlexTheBassist » Mon Sep 02, 2019 9:56 am

bluebell wrote:I have big problems hearing the difference to traditional mixes.

Try headphones. And I mean real headphones, like in “cans”, not in “earbuds”.
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Capoeira
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Re: binaural synthesis of spatial audio systems on headphones

Postby Capoeira » Mon Sep 02, 2019 10:03 am

well. the ilusion should work with every headphone. don't you hear the sound clearly originating from the front, like coming from the speakers? the ilusion is better percieved when sitting in front of real speakers (turned off, obviously). for me it creates the standard stereo triangle. so steep that I prefer the wider angles which are also availabe in the dataset

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Re: binaural synthesis of spatial audio systems on headphones

Postby bluebell » Mon Sep 02, 2019 10:13 am

AlexTheBassist wrote:
bluebell wrote:I have big problems hearing the difference to traditional mixes.

Try headphones. And I mean real headphones, like in “cans”, not in “earbuds”.


AKG K812

But I don't know what I have to listen for.
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Capoeira
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Re: binaural synthesis of spatial audio systems on headphones

Postby Capoeira » Mon Sep 02, 2019 2:31 pm

bluebell wrote:I have big problems hearing the difference to traditional mixes. Could you provide some audio that switches between traditional and binaural mix every couple of seconds to show the difference?


here you go. read description

https://youtu.be/pGt5gdA-RfY

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Re: binaural synthesis of spatial audio systems on headphones

Postby bluebell » Mon Sep 02, 2019 2:39 pm

Ah, I got it. It's a speaker/room simulation. Yes, I hear the difference. Thx.
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Capoeira
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Re: binaural synthesis of spatial audio systems on headphones

Postby Capoeira » Mon Sep 02, 2019 2:42 pm

bluebell wrote:Ah, I got it. It's a speaker/room simulation. Yes, I hear the difference. Thx.


Yes, the idea is to be able to mix/master reliable on headphones. Plus, this could actualy render better mixing results if you else mix in a poorly treated room. But those IRs from WDR are not perfect either. I am trying to DRC correct them now

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Re: binaural synthesis of spatial audio systems on headphones

Postby Capoeira » Wed Sep 04, 2019 11:22 am

So I was playing around with Abbey Road 3 for a while. It bothered me that it somehow sounded good, but then had that shitty sounding ingredient.
if you turn "circumference" and "ear to ear" down to the lowest values it seams you get the pure binaural impulse response; without the crappy sound-destructive crossfeed algo from Waves Nx.
what you guys think?
https://youtu.be/iT1iKPOQM7c

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Re: binaural synthesis of spatial audio systems on headphones

Postby Capoeira » Sun Sep 29, 2019 4:58 pm

I worked weeks on "room correcting" and frequency extending the WDR CR7 IRs. And yes, it is much "dryer" now. I think it sounds very good (the clipping ocured at ACC encoding stage. wont redo it for this simple demonstration):

https://www.youtube.com/watch?v=3PrRXjyarpg
https://www.youtube.com/watch?v=hXVMAu5Fn6M


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