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System and method for speech verification using out-of-vocabulary models

  • US 6,778,959 B1
  • Filed: 10/18/2000
  • Issued: 08/17/2004
  • Est. Priority Date: 10/21/1999
  • Status: Expired due to Fees
First Claim
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1. A system for performing a speech verification of a sound, comprising:

  • a recognizer configured to verify that said sound is valid by referencing a model bank that includes system vocabulary word models and out-of-vocabulary models, said out-of-vocabulary models including at least one of a garbage model and one or more noise models; and

    a processor configured to control said recognizer to thereby perform said speech verification, said speech verification including selecting noise model types for said noise models based upon an intended operating environment, and creating respective noise databases for training initial noise models by recording one or more samples of said noise model types.

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