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System and method for detecting synthetic speaker verification

  • US 9,412,382 B2
  • Filed: 09/21/2015
  • Issued: 08/09/2016
  • Est. Priority Date: 04/11/2008
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving, from a user of a speech verification system, a plurality of speech samples of a same word, wherein the plurality of speech samples of the same word comprise;

    a current speech response; and

    a plurality of previously recorded speech samples, wherein each of the previously recorded speech samples is associated with a distinct location;

    generating, via a processor, a sample similarity from the plurality of speech samples;

    making a decision, via the processor, whether to enroll the user in the speech verification system according to a comparison of the sample similarity with a threshold, wherein the decision is a first decision if the sample similarity is above the threshold and the decision is a second decision different from and mutually exclusive with the first decision if the sample similarity is below the threshold; and

    enrolling the user in the speech verification system responsively to the decision'"'"'s being the second decision.

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