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Method and system for identifying and correcting accent-induced speech recognition difficulties

  • US 8,036,893 B2
  • Filed: 07/22/2004
  • Issued: 10/11/2011
  • Est. Priority Date: 07/22/2004
  • Status: Expired due to Fees
First Claim
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1. A method of generating speech recognition output, the method comprising:

  • providing a plurality of different acoustic models specific to different languages, and a selected lexicon model;

    generating a first speech recognition output for a speech input in a first language using a first model combination that combines one of the plurality of acoustic models with the selected lexicon model, wherein said one of said acoustic models and said selected lexicon model are specific to said first language;

    in response to a confidence score for said first speech recognition output falling below a minimum acceptable score, generating one or more other speech recognition outputs for said speech input in said first language, wherein generating the one or more other speech recognition outputs comprises;

    identifying a sequence of phonemes corresponding to the speech input using a different one of the plurality of acoustic models specific to a second language different from said first language, andmatching the sequence of phonemes to one or more speech segments and/or words using the selected lexicon model, wherein the selected lexicon model is specific to the first language and not to the second language; and

    outputting a speech recognition output having a best confidence score among the generated speech recognition outputs.

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