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AssigneeNuance Communications, Inc.
InventorsIlija Zeljkovic, Taniya Mishra, Amanda Stent, Ann K. Syrdal, Jay Wilpon
Estimating the term…
Disclosed herein are systems, methods, and non-transitory computer-readable storage media relating to speaker verification. In one aspect, a system receives a first user identity from a second user, and, based on the identity, accesses voice characteristics. The system randomly generates a challenge sentence according to a rule and/or grammar, based on the voice characteristics, and prompts the second user to speak the challenge sentence. The system verifies that the second user is the first user if the spoken challenge sentence matches the voice characteristics. In an enrollment aspect, the system constructs an enrollment phrase that covers a minimum threshold of unique speech sounds based on speaker-distinctive phonemes, phoneme clusters, and prosody. Then user utters the enrollment phrase and extracts voice characteristics for the user from the uttered enrollment phrase. The system generates a user profile, based on the voice characteristics, for generating random challenge sentences according to a grammar.
A method comprising:
A non-transitory computer-readable storage medium storing instructions which, responsive to being executed by a processor, cause the processor to perform operations comprising:
A system comprising:
Dependencies are inferred from the claim text.