Dynamic speech sharpening

  • US 7,983,917 B2
  • Filed: 10/29/2009
  • Issued: 07/19/2011
  • Est. Priority Date: 08/31/2005
  • Status: Active Grant
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First Claim
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1. A method for reducing a search space for a recognition grammar used when interpreting natural language speech utterances, the method comprising:

  • creating a phonemic representation of acoustic elements associated with an acoustic speech model, the acoustic elements including at least an unstressed central vowel and plurality of phonemic elements;

    representing syllables associated with the acoustic speech model using the phonemic representation, each of the represented syllables including a series of acoustic elements;

    constructing, via an electronic device, an acoustic grammar that contains transitions between the acoustic elements of the represented syllables, the transitions constrained according to phonotactic rules of the acoustic speech model; and

    using the unstressed central vowel as a linking element between sequential phonemic elements contained in the constructed acoustic grammar.

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