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Extract DSP info from audio queue input callback function
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Extract DSP info from audio queue input callback function


  • Subject: Extract DSP info from audio queue input callback function
  • From: Tong Zhang <email@hidden>
  • Date: Fri, 16 Sep 2011 22:35:32 -0700

Hello,

I have a maybe very elementary question about audio queue in xcode 4:
What is the best approach to save amplitdue/pitch info (from mic) I've
obtained using a certain type of DSP algorithm within the audio queue
input callback function, so that I can display the updated pitch
detection info onto the screen? Since the AQ callback is not a method
of my model file, I am having a hard time to deliver the info I
obtained within this callback function to my model variables, and
further interacting with controller / view.

Any comments will be appreciated.

Tony
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