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writing audio from a AUGraph to disk
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writing audio from a AUGraph to disk


  • Subject: writing audio from a AUGraph to disk
  • From: Keith Hamel <email@hidden>
  • Date: Fri, 31 Oct 2008 01:53:15 -0700

List:

I want to write the output from a relatively complex AUGraph (including DLSSynths, effects, mixer, output, etc.) to an audio file while it is playing.

I have not been able to figure out how to stream the audio being generated by the AUGraph to an ExtAudioFile. The Core Audio examples that write audio files either use the Default input device (i.e. mic ) or they stream data from existing audio files. When I try to duplicate this process with one of the Audio Units in my AUgraph (i.e. trying to set up a render callback on the outputUnit or on one of the other audiounits) I am not able to get the data through the callback function and out to the audio file.

Am I going about this the right way, and if not, can someone point me in the right direction or point me to a code snippet that might help...

Thanks, Keith Hamel





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