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Automatic segmentation in speech synthesis

  • US 7,266,497 B2
  • Filed: 01/14/2003
  • Issued: 09/04/2007
  • Est. Priority Date: 03/29/2002
  • Status: Active Grant
First Claim
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1. In a system that concatenates speech units to produce synthetic speech, a method for automatically segmenting unit labels, the method comprising:

  • training a set of hidden Markov Models (HMMs) using seed data in a first iteration;

    aligning the set of HMMs using a Viterbi alignment to produce segmented unit labels; and

    adjusting boundaries of the unit labels using spectral boundary correction,wherein the unit labels having adjusted boundaries are used to concatenate speech units to synthesize speech.

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