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Voice conversion system and methodology

  • US 6,615,174 B1
  • Filed: 02/22/2000
  • Issued: 09/02/2003
  • Est. Priority Date: 01/27/1997
  • Status: Expired due to Fees
First Claim
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1. A method of transforming a source signal representing a source voice into a target signal representing a target voice, said method comprising the machine-implemented steps of:

  • preprocessing said source signal to produce a source signal segment;

    comparing the source signal segment with a plurality of source codebook entries representing speech units in said source voice to produce therefrom a plurality of corresponding weights;

    transforming the source signal segment into a target signal segment based on the plurality of weights and a plurality of target codebook entries representing speech units in said target voice, said target codebook entries corresponding to the plurality of source codebook entries; and

    post processing the target signal segment to generate said target signal.

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