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PITCH DETECTION ALGORITHM BASED ON PWVT

  • US 20170287507A1
  • Filed: 03/31/2017
  • Published: 10/05/2017
  • Est. Priority Date: 03/31/2016
  • Status: Active Grant
First Claim
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1. A method of a pitch detection comprising:

  • sampling a signal to generate a discrete time signal;

    generating a complex valued discrete time signal from the discrete time signal;

    computing Pseudo Weigner Ville Transformation (PWVT) on the complex valued discrete time signal to generate a spectral representation of the signal;

    computing a harmonic summation on the spectral representation to generate a pitch candidate; and

    deciding the pitch candidate as a pitch value if a harmonic summation value of the pitch candidate is larger than a threshold.

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