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MusicTrack kSequenceTrackProperty_MuteStatus fails to work
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MusicTrack kSequenceTrackProperty_MuteStatus fails to work


  • Subject: MusicTrack kSequenceTrackProperty_MuteStatus fails to work
  • From: Valentin Radu <email@hidden>
  • Date: Sat, 25 May 2013 18:34:56 +0200

Hi everybody,

I'm pretty new with MIDIs and the AudioToolbox/MusicPlayer.h api and I have a rather annoying problem. I use MusicPlayer and a AUGraph to make a drum machine. The sound is looped and played on multiple tracks. It works to the point when I try to set individual tracks mute with:

`status = MusicTrackSetProperty(track, kSequenceTrackProperty_MuteStatus, &isMuted, sizeof(isMuted));
assert(checkOSStatus(status));`

Actually that works too first time I mute the track, however, when I try to unmute it, the device remains silent. I get no error, no nothing. I'm guessing this is not the normal behaviour? What could be causing this?
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