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AudioConverterGetProperty and kAudioConverterChannelMap
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AudioConverterGetProperty and kAudioConverterChannelMap


  • Subject: AudioConverterGetProperty and kAudioConverterChannelMap
  • From: Jake Goulding <email@hidden>
  • Date: Sat, 28 May 2005 13:41:03 -0400

Hey gang,

I am involved with a project that makes use of CoreAudio to encode raw PCM into various formats. The channel layout for the source doesn't map directly to the layout for the CoreAudio encoder, so I was using AudioConverterGetProperty with kAudioConverterChannelMap to set the layout of the streams.

Steps I've followed:
1) Make two ASBDs with 6 channels
2) Make a new AudioConverter to convert between the two
3) Ask for the channel map of the AudioConverter

[continue converting as usual]
audio comes out garbled (clicking in the channels)
If I remove step 3: audio is fine.

Any ideas?

-jake

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