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Re: 3DMixer - Observations and Suggestions
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Re: 3DMixer - Observations and Suggestions


  • Subject: Re: 3DMixer - Observations and Suggestions
  • From: John Lazzaro <email@hidden>
  • Date: Sun, 20 Oct 2002 19:12:31 -0700

> Brian Barnes <email@hidden> writes:
>
> What I'm doing now is taking mono samples in the input callback,
> expanding them to stereo and multiplying in a simple left/right volume
> (calculated previously from the distance + angles to sound from
> listener.) Yes, this is about 1000x simpler than what 3DMixer is
> probably doing, but it's good enough for games.

I'd suggest reading:

http://interface.cipic.ucdavis.edu/PAPERS/Brown1997(Efficient3dHRTFModels).pdf

It's quite short and to the point, and shows another take on what
to do for 3-D when you're very cycle-constrained. I implemented
this as sfront's implementation for Structure Audio's spatialize()
command, and was quite happy with it. The paper above is short
and to the point, a more theoretical (and longer) version is:

http://interface.cipic.ucdavis.edu/PAPERS/Brown_Duda98.pdf

-------------------------------------------------------------------------
John Lazzaro -- Research Specialist -- CS Division -- EECS -- UC Berkeley
lazzaro [at] cs [dot] berkeley [dot] edu www.cs.berkeley.edu/~lazzaro
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