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METHOD AND APPARATUS FOR LARGE VOCABULARY CONTINUOUS SPEECH RECOGNITION

  • US 20120116766A1
  • Filed: 11/07/2010
  • Published: 05/10/2012
  • Est. Priority Date: 11/07/2010
  • Status: Active Grant
First Claim
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1. A method for extracting a term comprising an at least one word from an audio signal captured in a call center environment, comprising:

  • receiving the audio signal captured in the call center environment;

    extracting a multiplicity of feature vectors from the audio signal;

    creating a phoneme lattice from the multiplicity of feature vectors, the phoneme lattice comprising at least one allophone, the at least one allophone comprising at least two phonemes;

    creating a hybrid phoneme-word lattice from the phoneme lattice; and

    extracting the word by analyzing the hybrid phoneme-word lattice.

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