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Need help with the MatrixMixer
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Need help with the MatrixMixer


  • Subject: Need help with the MatrixMixer
  • From: Robert Grant <email@hidden>
  • Date: Sat, 15 Nov 2003 19:48:37 -0500

I'm having a hard time getting sound to pass through the matrix mixer. I'm basing what I'm doing on the MatrixMixerTest example app and everything seems to be wired up OK - I'm definitely getting my synths pulled on, but no sound.

There seems to be a variety of different places where levels need to be set and I'm setting them all I think. Here's what I've got:

set the input level for each channel on each input bus:
kMatrixMixerParam_Volume, kAudioUnitScope_Input

enable each input bus
kMatrixMixerParam_Enable, kAudioUnitScope_Input

set the level of each intersection within the matrix
kMatrixMixerParam_Volume, kAudioUnitScope_Global
Some more explication on addressing these intersections would be good.

set the level of each output channel on each output bus
kMatrixMixerParam_Volume, kAudioUnitScope_Output

set the global level of the mixer
kMatrixMixerParam_Volume, kAudioUnitScope_Global, 0xFFFFFFFF

Enable each output bus
kMatrixMixerParam_Enable, kAudioUnitScope_Output


Anyone else messing with the Matrix?

Robert.
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