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Pitch candidate selection method for multi-channel pitch detectors

  • US 20040158462A1
  • Filed: 12/10/2003
  • Published: 08/12/2004
  • Est. Priority Date: 06/11/2001
  • Status: Abandoned Application
First Claim
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1. A method for estimating the pitch of a signal comprising:

  • determining multiple pitch candidates from said signal. determining multiple signal features (i.e. a feature vector) for each of the pitch candidates. estimating the parameters of a likelihood function on the feature space which returns the likelihood that a pitch candidate is correct based on the position of its corresponding feature vector. determining the likelihood that each pitch candidate is correct by evaluating the likelihood function at the position defined by each of the said pitch candidate'"'"'s feature vectors. determining the output pitch to be a function of the individual pitch candidates and their likelihood of being correct.

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