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Method and apparatus for speech synthesis without prosody modification

  • US 7,127,396 B2
  • Filed: 01/06/2005
  • Issued: 10/24/2006
  • Est. Priority Date: 12/04/2000
  • Status: Expired due to Fees
First Claim
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1. A method of selecting speech segments for concatenative speech synthesis, the method comprising:

  • parsing an input text into speech units;

    identifying context information for each speech unit based on its location in the input text and at least one neighboring speech unit;

    identifying a set of candidate speech segments for each speech unit based on the context information through steps comprising applying the context information for a speech unit to a decision tree to identify a leaf node containing candidate speech segments for the speech unit; and

    identifying a sequence of speech segments from the candidate speech segments based in part on a smoothness cost between the speech segments.

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