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Multi-dialect speech recognition method and apparatus

  • US 5,865,626 A
  • Filed: 08/30/1996
  • Issued: 02/02/1999
  • Est. Priority Date: 08/30/1996
  • Status: Expired due to Term
First Claim
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1. A computer implemented method of processing voiced speech for modeling speech for a segmented population of speakers, each segment formed by use of a dialect and/or by use of dissimilar channels, comprising the steps of:

  • inputting and storing oral utterances of words from each segment,physically extracting a set of features from the oral utterances of each segment,compiling a database of acoustic descriptors of said utterances for each segment,establishing a database of probability density functions associated with said utterances,relating said probability density functions with said acoustic descriptors of all said segments, wherein at least one probability density function is related or mapped to at least two acoustic descriptors in at least two respective segments, andcombining said features, said acoustic descriptors and said probability density functions together to determine the best model for each segment.

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