Pitch shift with Core Audio/RemoteIO on iPhone
Pitch shift with Core Audio/RemoteIO on iPhone
- Subject: Pitch shift with Core Audio/RemoteIO on iPhone
- From: "Stefan Alder" <email@hidden>
- Date: Mon, 12 Jan 2009 13:30:39 -0800
I'm considering using RemoteIO directly rather than OpenAL and wondering how best to implement real-time pitch shift functionality. Its ok if the sound is sped up, so I assume I need to resample the source data before copying it to the buffer. The question is what algorithm should I use to resample so that cpu is conserved and quality remains reasonable high.
Thanks for any advice.
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