Pitch analysis and silence vs. speech detection with SignalLab
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12-09-2012, 08:21 AM
Post: #6
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RE: Pitch analysis and silence vs. speech detection with SignalLab
You could indeed just use the Fourier-analysis for both your needs using a SLGenericReal component, get the timing and do some frequency-checking. For the timing you could use the input-stream (samples/second) for example, and GetTickCount() might be an alternative.
For your true's and false's to be set correctly you should get a little creative, check how long a certain minimum wasn't reached (that would be your silence) and check when some higher minimum was reached first and last, that would be the start and ending of your speech for example. Hope that gets you going. Regards, Dave |
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