BIOMETRIC SPEAKER IDENTIFICATION
First Claim
1. A biometric speaker-identification apparatus that generates one or more speaker-identity candidates for a speaker based on probe match scores obtained by performing a voice matching operation between a probe and templates in a biometric corpus, comprising:
- a plurality of prototypes; and
a speaker-identification processor coupled to the biometric corpus, the speaker-identification processor configured to select templates of the biometric corpus as the speaker-identity candidates based on the prototypes.
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Abstract
A biometric speaker-identification apparatus is disclosed that generates ordered speaker-identity candidates for a probe based on prototypes. Probe match scores are clustered, and templates that correspond to clusters having top M probe match scores are compared with the prototypes to obtain template-prototype match scores. The probe is also compared with the prototypes, and those templates corresponding to template-prototype match scores that are nearest to probe-prototype match scores are selected as speaker-identity candidates. The speaker-identity candidates are ordered based on their similarity to the probe.
26 Citations
20 Claims
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1. A biometric speaker-identification apparatus that generates one or more speaker-identity candidates for a speaker based on probe match scores obtained by performing a voice matching operation between a probe and templates in a biometric corpus, comprising:
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a plurality of prototypes; and a speaker-identification processor coupled to the biometric corpus, the speaker-identification processor configured to select templates of the biometric corpus as the speaker-identity candidates based on the prototypes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A biometric speaker-identification apparatus that generates a speaker-identity candidate for a speaker based on probe match scores obtained by performing a voice matching operation between a probe and templates in a biometric corpus, comprising:
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a plurality of prototypes; a speaker-identification processor coupled to the biometric corpus, the speaker-identification processor; groups the probe match scores into K clusters; selects templates corresponding to ones of the K clusters having probe match scores that exceed M; performs the voice matching operation between the selected templates and the prototypes to obtain template-prototype match scores; performs the voice matching operation between the probe and the prototypes to obtain probe-prototype match scores; and selects as speaker-identity candidates one or more templates corresponding to template-prototype match scores that are nearest to the probe-prototype match scores based on a nearness measurement. - View Dependent Claims (10)
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11. A biometric speaker-identification method comprising:
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storing a plurality of prototypes in a memory; and selecting templates of a biometric corpus as one or more speaker-identity candidates for a probe based on the prototypes. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification