Hi CoreAudio experts! I'm developing a desktop OSX audio app and I need to use a mixer. The only thing I know is that I won't use 3D spatial things. I'm looking for having a mixer with the most flexibility since I don't want the client has to choose what kind of mixer to use.
So I need to use one between the kAudioUnitSubType_MultiChannelMixer, kAudioUnitSubType_MatrixMixer and kAudioUnitSubType_StereoMixer. My problem is that it seems that they don't share the same parameters: - SteroMixer has only: volume, pan - MultiChannelMixer has: volume, pan, enable - MatrixMixer has: volume, enable Well… here are my questions. 1) What the enable parameter means? Does it set only the volume to zero, so I could implement it in the SteroMixer? Or is it more than this? 2) Why the MatrixMixer doesn't have a pan parameter? 3) I think I will go with the MultiChannelMixer since I don't think I will need more than 1 output and it could be mono/stereo, but from what I saw this one is used for iOs. Is there a reason to not use it on OSX? 4) At the beginning the MatrixMixer volume is 0 so I need to go through all the input buses and output to set the volume. I saw this on StackOverflow. But is the default behaviour or is there a parameter/property to set to have a full volume directly? Thank you for your help. Laurent Noudohounsi.
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