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Producing time uniform feature vectors

  • US 8,396,704 B2
  • Filed: 10/23/2008
  • Issued: 03/12/2013
  • Est. Priority Date: 10/24/2007
  • Status: Expired due to Fees
First Claim
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1. A method of processing a signal representing speech, the method comprising:

  • receiving a region of the signal representing speech, wherein the region comprises a portion of a frame of the signal representing speech classified as a voiced frame and wherein the region is marked based on one or more pitch estimates for the region;

    identifying a plurality of cords within the region of the signal based on occurrence of events within the region of the signal, wherein the events comprise glottal pulses and each cord begins with onset of a first glottal pulse and extends to a point prior to an onset of a second glottal pulse but excludes a portion of the region of the signal prior to the onset of the second glottal pulse; and

    normalizing the plurality of cords on a time basis, wherein the normalized plurality of cords each have a uniform duration on the time basis.

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