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METHOD AND APPARATUS FOR IDENTIFYING ACOUSTIC BACKGROUND ENVIRONMENTS TO ENHANCE AUTOMATIC SPEECH RECOGNITION

  • US 20080300871A1
  • Filed: 05/29/2007
  • Published: 12/04/2008
  • Est. Priority Date: 05/29/2007
  • Status: Active Grant
First Claim
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1. A method of identifying an acoustic environment of a caller, the method comprising:

  • analyzing acoustic features of a received audio signal from a caller;

    receiving meta-data information;

    classifying a background environment of the caller based on the analyzed acoustic features and the meta-data;

    selecting an acoustic model matched to the classified background environment from a plurality of acoustic models, each of the plurality of acoustic models being generated for a particular predefined background environment; and

    performing speech recognition on the received audio signal using the selected acoustic model.

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