Number of channels in a mixer vs performance
Number of channels in a mixer vs performance
- Subject: Number of channels in a mixer vs performance
- From: Gregory Wieber <email@hidden>
- Date: Wed, 4 Aug 2010 13:28:11 -0700
Hello,
I'm trying to optimize a core audio app where I have several render input procedures grouped together by a audio unit multi channel mixer.
I've googled around, but didn't find anything. Let's say you were building a synthesizer, and you had polyphony. My approach is to have a multichannel mixer where there are a number of voices -- one per bus. When there are a lot of voices, performance suffers. I've done a lot of optimization in the voice render callback, but I wonder if I'm approaching it in the wrong way?
Before I completely re-arrange my approach, I thought it was worth asking whether a number of busses each with there own render callback is slower than having one render callback which loops through each voice.
Thank you.
Greg
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