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Subword-based speaker verification using multiple-classifier fusion, with channel, fusion, model and threshold adaptation

  • US 6,760,701 B2
  • Filed: 01/08/2002
  • Issued: 07/06/2004
  • Est. Priority Date: 11/22/1996
  • Status: Expired due to Term
First Claim
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1. An automatic speaker verification system comprising:

  • a receiver, the receiver obtaining enrollment speech over an enrollment channel;

    a means, connected to the receiver, for developing an estimate of the enrollment channel;

    a first storage device, connected to the receiver, for storing the enrollment channel estimate;

    a means for extracting predetermined features of the enrollment speech;

    a means, operably connected to the extracting means, for segmenting the predetermined features of the enrollment speech, wherein the features are segmented into a plurality of subwords using automatic blind speech segmentation; and

    at least one classifier, connected to the segmenting means, wherein the classifier models the plurality of subwords and outputs one or more classifier score.

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