SYSTEM AND METHOD FOR IDENTIFICATION OF A SPEAKER BY PHONOGRAMS OF SPONTANEOUS ORAL SPEECH AND BY USING FORMANT EQUALIZATION
First Claim
1. A method for identification of a speaker by phonograms of oral speech, the method comprising:
- evaluating, via a computing device, similarity between a first phonogram of the speaker and a second, or sample, phonogram by matching formant frequencies in referential utterances of a speech signal, wherein the utterances for comparison are selected from the first phonogram and the second phonogram;
selecting referential utterances of speech signals from the first phonogram and the second phonogram, wherein the referential utterances comprise formant paths of at least three formant frequencies;
comparing, via the computing device, therebetween the selected referential utterances comprising at least two identical formant frequencies; and
evaluating, via the computing device, similarity of the compared referential utterances from matching other formant frequencies, wherein similarity of the phonograms is determined from evaluation of similarity of all the compared referential utterances.
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Accused Products
Abstract
A system and method for identification of a speaker by phonograms of oral speech is disclosed. Similarity between a first phonogram of the speaker and a second, or sample, phonogram is evaluated by matching formant frequencies in referential utterances of a speech signal, where the utterances for comparison are selected from the first phonogram and the second phonogram. Referential utterances of speech signals are selected from the first phonogram and the second phonogram, where the referential utterances include formant paths of at least three formant frequencies. The selected referential utterances including at least two identical formant frequencies are compared therebetween. Similarity of the compared referential utterances from matching other formant frequencies is evaluated, where similarity of the phonograms is determined from evaluation of similarity of all the compared referential utterances.
21 Citations
18 Claims
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1. A method for identification of a speaker by phonograms of oral speech, the method comprising:
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evaluating, via a computing device, similarity between a first phonogram of the speaker and a second, or sample, phonogram by matching formant frequencies in referential utterances of a speech signal, wherein the utterances for comparison are selected from the first phonogram and the second phonogram; selecting referential utterances of speech signals from the first phonogram and the second phonogram, wherein the referential utterances comprise formant paths of at least three formant frequencies; comparing, via the computing device, therebetween the selected referential utterances comprising at least two identical formant frequencies; and evaluating, via the computing device, similarity of the compared referential utterances from matching other formant frequencies, wherein similarity of the phonograms is determined from evaluation of similarity of all the compared referential utterances. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for identification of a speaker by phonograms of oral speech, the system comprising:
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a computer memory configured to store digital audio signal files representative of a plurality of phonograms converted into digital form; a computing device configured to; evaluate similarity between a first phonogram of the speaker and a second phonogram by matching formant frequencies in referential utterances of a speech signal, wherein the utterances for comparison are selected from the first phonogram and the second phonogram; select referential utterances of speech signals from the first phonogram and the second phonogram, wherein the referential utterances comprise formant paths of at least three formant frequencies; compare therebetween the selected referential utterances comprising at least two identical formant frequencies; and evaluate similarity of the compared referential utterances from matching other formant frequencies, wherein similarity of the phonograms is determined from evaluation of similarity of all the compared referential utterances. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A system for identification of a speaker by phonograms of oral speech, the system comprising:
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means for evaluating similarity between a first phonogram of the speaker and a second, or sample, phonogram by matching formant frequencies in referential utterances of a speech signal, wherein the utterances for comparison are selected from the first phonogram and the second phonogram; means for selecting referential utterances of speech signals from the first phonogram and the second phonogram, wherein the referential utterances comprise formant paths of at least three formant frequencies; means for comparing therebetween the selected referential utterances comprising at least two identical formant frequencies; and means for evaluating similarity of the compared referential utterances from matching other formant frequencies, wherein similarity of the phonograms is determined from evaluation of similarity of all the compared referential utterances. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification