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Method of speaker adaptive speech recognition

  • US 5,170,432 A
  • Filed: 09/21/1990
  • Issued: 12/08/1992
  • Est. Priority Date: 09/22/1989
  • Status: Expired due to Term
First Claim
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1. A method for recognizing spoken words of a speech, comprising the steps of:

  • extracting feature vectors from a speech signal corresponding to a spoken phrase to be recognized;

    segmenting and classifying the successive extracted feature vectors into syllable oriented word subunits by means of a stored supply of word subunits to form a set of hypotheses;

    comparing the set of hypotheses formed from the segmented and classified word subunits with standard pronunciations and pronunciation variants of a plurality of words stored in a reference pattern vocabulary over a three-dimensional time dynamic period to generate a set of word hypotheses; and

    subjecting the generated set of word hypotheses to syntactic analysis in order to determine the spoken phrase.

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