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MusicSequenceGetAUGraph vs. MusicSequenceSetAUGraph graphs
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MusicSequenceGetAUGraph vs. MusicSequenceSetAUGraph graphs


  • Subject: MusicSequenceGetAUGraph vs. MusicSequenceSetAUGraph graphs
  • From: Scott Burgess <email@hidden>
  • Date: Sat, 12 Apr 2008 14:35:06 -0700

Hi List,

I have a graph that I want to offline render and save to a file. I am 
using the PlaySequence sample project.

If you make a MusicSequence, you get a graph with 3 nodes: DLSPlayer,
kAudioUnitSubType_DynamicsProcessor, and generic output. They
are connected in that order. In the example, it sets a few audio
unit properties (like sample rate, max frame size, etc).

I want to use my own AUGraph for rendering, but I get silent audio
data in the file. I have even tried to reproduce exactly the 3 nodes 
(DLSPlayer, dynamics processor, and generic output), but still get
silence. I do go through and set each sequence track dest node to 
the DLSplayer in my graph. I've tried setting the DLSPlayer to
offline render.

Does this sound familiar to anyone?

Thanks!
Scott



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