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System and Method for Unit Selection Text-to-Speech Using A Modified Viterbi Approach

  • US 20140257818A1
  • Filed: 05/20/2014
  • Published: 09/11/2014
  • Est. Priority Date: 06/18/2010
  • Status: Active Grant
First Claim
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1. A method comprising:

  • selecting candidate speech units for converting text to speech;

    ordering the candidate speech units based on a fundamental frequency of each candidate speech unit in the candidate speech units, to yield ordered candidate speech units;

    constructing a sublist of the ordered candidate speech units, wherein the fundamental frequency of each candidate speech unit in the sublist is within a threshold distance of a proximate fundamental frequency associated with a proximate speech unit;

    concatenating each candidate speech unit in the sublist with the proximate speech unit, to yield concatenated speech units; and

    synthesizing the speech using the concatenated speech units.

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