×

Method and system for improved speech recognition by degrading utterance pronunciations

  • US 7,983,914 B2
  • Filed: 08/10/2005
  • Issued: 07/19/2011
  • Est. Priority Date: 08/10/2005
  • Status: Expired due to Fees
First Claim
Patent Images

1. In a speech recognition engine executing on a computer, a method of improving overall system recognition performance comprising steps of:

  • identifying a confusable pair of words, comprising a target word and a substitute word, in a candidate set of incorrectly recognized words by;

    (a) identifying a first word as being a word that is rarely misrecognized and is frequently returned as confusions for other words;

    (b) identifying a second word as being a word for which the first word is frequently substituted;

    (c) determining the first word to be the substitute word in the confusable pair; and

    (d) determining the second word to be the target word in the confusable pair; and

    adjusting a pronunciation of the substitute word to a worse pronunciation of the substitute word, wherein the adjusted pronunciation of the substitute word results in less accurate detection of the substitute word by the speech recognition engine.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×