Global boundary-centric feature extraction and associated discontinuity metrics

  • US 7,643,990 B1
  • Filed: 10/23/2003
  • Issued: 01/05/2010
  • Est. Priority Date: 10/23/2003
  • Status: Expired due to Fees
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First Claim
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1. A machine-implemented method comprising:

  • i. extracting, via a microprocessor, portions from speech segments, the portions surrounding a segment boundary within a phoneme;

    ii. identifying time samples from the portions;

    iii. constructing a matrix W containing first data corresponding to the time samples from the portions surrounding the segment boundary within the phoneme and second data corresponding to the portions;

    iv. deriving feature vectors that represent the portions in a vector space by decomposing the matrix W containing the first data corresponding to the time samples from the portions surrounding the segment boundary within the phoneme and the second data corresponding to the portions; and

    v. determining a distance between the feature vectors in the vector space.

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