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iOS 8.24 sample format and MIPS
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iOS 8.24 sample format and MIPS


  • Subject: iOS 8.24 sample format and MIPS
  • From: Kevin Dixon <email@hidden>
  • Date: Wed, 02 May 2012 11:21:39 -0700

From the documentation I have read, it suggests that using the 8.24
sample format for AudioUnits (in my case RemoteIO render callback) is
the most efficient sample format.

We already have a significant code base designed to run in integer
mode on ARM processors, but using 16 bit integer samples.

We are using AVAssetReader to decode items from the iTunes library to
16 bit PCM, and setting the RemoteIO client format to 16 bit PCM, and
doing the processing in our render callback.
Would you expect to see a significant performance boost or reduction
in MIPS if we converted to the 8.24 integer format?

Thanks

-Kevin
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