SPEAKER VERIFICATION APPARATUS AND METHOD UTILIZING VOICE INFORMATION OF A REGISTERED SPEAKER WITH EXTRACTED FEATURE PARAMETER AND CALCULATED VERIFICATION DISTANCE TO DETERMINE A MATCH OF AN INPUT VOICE WITH THAT OF A REGISTERED SPEAKER
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United States of America Patent
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Apr 12, 2005
Grant Date -
N/A
app pub date -
Jan 19, 2000
filing date -
Apr 1, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A speaker verification apparatus and method input an identity claim, select voice information of a registered speaker corresponding to the input identity claim, input a voice of the speaker, analyze the input voice so as to extract a feature parameter, calculate a verification distance between a feature parameter of the input voice and that of the voice of the registered speaker and the speaker distances between a feature parameter of the input voice and those of the voices of other speakers; and determine whether or not the input voice matches that of the registered speaker. A false acceptance error rate, is input as a threshold, and a probability distribution of interspeaker distances is functions to determine that the input voice is the voice of the registered person specified by the identity claim.
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