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Audio Unit ioConfigs
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Audio Unit ioConfigs


  • Subject: Audio Unit ioConfigs
  • From: Chris Santoro <email@hidden>
  • Date: Mon, 14 Dec 2009 10:24:12 -0500


I'm trying to implement an audio unit (type aufx) with the ability for mono->stereo and stereo->stereo, but NOT mono->mono.

My AU subclasses from AUMIDIEffectBase and properly overrides the SupportedNumChannels function.

If I run the AU Validation tool on it, it shows the proper channel handling capabilities.

//-------------------------------------------------------
Reported Channel Capabilities (explicit):
      [1, 2]  [2, 2] 

Input/Output Channel Handling:
1-1   1-2   1-4   1-5   1-6   1-7   1-8   2-2   2-4   2-5   2-6   2-7   2-8   4-4   4-5   5-5   6-6   7-7   8-8
      X                                   X          
//-------------------------------------------------------

However, both AULab and Logic 8 show a mono->mono option, even though it isn't there.

Is this a bug in Logic or am I doing something wrong? Has anyone else experienced problems with this? I've also tried every combination of removing/restarting/rebuilding I could think of, in case the component manager might be caching out-of-date information.

Best,
Chris

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