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Method and apparatus for coding an information signal using pitch delay contour adjustment

  • US 20070027680A1
  • Filed: 07/27/2005
  • Published: 02/01/2007
  • Est. Priority Date: 07/27/2005
  • Status: Active Grant
First Claim
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1. A method of operating a speech encoder, the method comprising the steps of:

  • estimating a pitch delay based on an input signal;

    estimating a variation in pitch delay based on the pitch delay estimate;

    determining an adaptive step size value based on the variation in pitch delay; and

    generating an encoded pitch parameter based on the adaptive step size.

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