Binaural Sound with the Web Audio API

http://blog.kaistale.com/?p=1428

by kabla • 12 years ago

55 8 12 years ago

blog.kaistale.com

cypher543• 12 years ago

Doesn't work for me in Chrome 39:

main.js:129 Uncaught SyntaxError: Unexpected token var

kapkapkap• 12 years ago

A great demo of binaural sound - https://www.youtube.com/watch?v=PKdDA_jhgX8

hkailahi• 12 years ago

I just got my haircut after listening to this, and it was creepily similar.

mrb• 12 years ago

This is insanely great! Now, imagine if binaural audio was combined with an accelerometer sensor (in the earbud/headphone) so that when you turn your head, the sounds' origins would be adjusted in real time to reflect your new head position. This would be awesome for video games and movies.

To make this work, you would need to record the location of every sound. Easy to do for a video game (where the software knows the exact object or person emitting a sound). But it would be harder for movies, as this sounds localization data would need to be captured on set and handled during all post production work.

I did a little research and a field known as ambisonics (http://en.m.wikipedia.org/wiki/Ambisonics) generalizes this concept to more than 2 speakers. Now that I think about it I remember that the guy behind the xiph.org videos debunking digital audio myths lamenting that not enough research was being done on ambisonics.

corysama• 12 years ago

Binaural + Binocular + VR headset makes for a "Being John Malkovich"/"Strange Days" recorded experience.

https://www.youtube.com/watch?v=oXaxVLNMIxU

tonetheman• 12 years ago

Yup not working for me either :( Version 39.0.2171.95 m

Uncaught NotSupportedError: Failed to set the 'buffer' property on 'ConvolverNode': The buffer sample rate of 44100 does not match the context rate of 48000 Hz.

hpl.init_convolver main.js:464 hpl.init main.js:506 main.js:559 (anonymous function)

kabla• 12 years ago

Well, this is a shame.. Apparently the sample rate of the AudioContext (for some people 48 kHz) isn't definable (it should be 44.1 kHz here), which makes this a tough thing to fix. For me, it works in osx but not in windows 8 (bootcamp).

I found this: https://github.com/WebAudio/web-audio-api/issues/300

Apparently it's not implemented yet?

pvaldes• 12 years ago

Not directly related, but curiously I'd noticed today that cl-binaural for common lisp is not anymore in quicklisp. I wonder why.

Binaural Sound with the Web Audio API

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