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Different behavior between simulator and device
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Different behavior between simulator and device


  • Subject: Different behavior between simulator and device
  • From: Jokke Heikkila <email@hidden>
  • Date: Wed, 13 Jul 2011 16:27:47 +0300

I got an simple audio app with two AUGraphs ('generator' and
'listener' on their own separate classes), the other functioning as
sound generator and the other as FFT analyzer. The graphs are started
and stopped separately from the GUI. The problem and where I'm lost
now is that all works in the simulator, but on the device the AUGraph
connected to mic input and feeding FFT analysis doesn't do a thing.
I'm not getting any errors on setting up the graph and starting it,
its just that the render callback is not called at all (verified by
simple logging line). The generator AUGraph works.

One last thing is that, if I disable the generator class (by not
instantiating it), then the FFT class works also on the device.

What could cause the difference between simulator and device and can
different AUGraphs (and its properties) have effect on each other?
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