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Voice Activated Recording
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Voice Activated Recording


  • Subject: Voice Activated Recording
  • From: Bob Ingraham <email@hidden>
  • Date: Fri, 29 May 2009 14:39:58 -0600 (MDT)

Hi All,

I'm trying to put together a CoreAudio app that would start recording from an input, triggered by speech (kind of like those voice-activated tape recorders.)

The order of ops would be:

1. Open an audio input for recording to a file.
2. Do nothing while detecting silence.
3. Upon detecting non-silence, start recording to said file.
4. Stop recording after x seconds of silence.

Is it possible to construct a CoreAudio app with the standard-issue AU's shipped with MacOS 10.5.x?

Or do I have to make a custom AU to do this?

Any pointers on where to start or how to go about this would be much appreciated!

Thanks,
Bob Ingraham
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