Re: Apple Audio Mixer
Re: Apple Audio Mixer
- Subject: Re: Apple Audio Mixer
- From: Chris Rogers <email@hidden>
- Date: Thu, 4 Apr 2002 13:17:07 -0800
Just wondering, is there an advantage in using the apple audio
mixer? That is, are there any speed benefits, or does it take
advantage of any hardware? If I were to implement my own mixer,
assuming it is implemented well but not taking advantage of any
special hardware(except AltiVec maybe), would it's performance be
significantly worse than the Apple Audio Mixer AudioUnit?
Speed-wise, assuming you're writing very optimized code (altivec etc.) then
the Apple mixer is not likely to be much faster than yours.
The Apple mixer deals with volume and pan changes smoothly (does anti-zippering
/ de-glitching) so this is one reason you may want to use it.
A miscellaneous question now. This does not quite pertain to
coreaudio but... are WAVE RIFF files always in little endian format?
I can't find any flag in the WAVE format that would indicate
endian'ness.
Thank you in advance...
Jeremy Jurksztowicz
I believe WAVE (and RIFF files in general) are always little-endian,
but it's possible I'm wrong.
Chris Rogers
CoreAudio
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