Importance

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Abstract

A speaker recognition device for judging whether or not an unknown speaker is an authentic registered speaker himself/herself executes `text verification using speaker independent speech recognition` and `speaker verification by comparison with a reference pattern of a password of a registered speaker`. A presentation section instructs the unknown speaker to input an ID and utter a specified text designated by a text generation section and a password. The `text verification` of the specified text is executed by a text verification section, and the `speaker verification` of the password is executed by a similarity calculation section. The judgment section judges that the unknown speaker is the authentic registered speaker himself/herself if both the results of the `text verification` and the `speaker verification` are affirmative. According to the device, the `text verification` is executed using a set of speaker independent reference patterns, and the `speaker verification` is executed using speaker reference patterns of passwords of registered speakers, thereby storage capacity for storing reference patterns for verification can be considerably reduced. Preferably, `speaker identity verification` between the specified text and the password is executed.

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First Claim