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Re: Converting to the canonical audio unit format
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Re: Converting to the canonical audio unit format

  • Subject: Re: Converting to the canonical audio unit format
  • From: Tim Murison <email@hidden>
  • Date: Wed, 14 May 2014 13:26:07 -0400
In iOS, AudioUnits seem to use kAudioFormatFlagsAudioUnitCanonical, which is defined as:

kAudioFormatFlagIsSignedInteger | kAudioFormatFlagsNativeEndian | kAudioFormatFlagIsPacked | kAudioFormatFlagIsNonInterleaved | (kAudioUnitSampleFractionBits << kLinearPCMFormatFlagsSampleFractionShift)

Which is 8.24 signed integers, non-interleaved.

On May 14, 2014, at 1:07 PM, Paul Davis <email@hidden> wrote:




On Wed, May 14, 2014 at 12:18 PM, Tim Murison <email@hidden> wrote:
Hi,

I’m building an AudioUnit based application and find myself wanting to convert from my internal format of interleaved 32-bit floats to the AudioUnit canonical format of 32-bit 8.24 non-interleaved integers.

what do you mean by "canonical"? 32 bit floating point is the default and overwhelmingly prevalent audio format used within and outside of AudioUnits.
 

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 >Converting to the canonical audio unit format (From: Tim Murison <email@hidden>)
 >Re: Converting to the canonical audio unit format (From: Paul Davis <email@hidden>)

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