G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 17/00 (2006.01)
Patent
CA 2227925
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. A 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, thus considerably reducing storage capacity required for storing reference patterns for verification. Preferably, 'speaker identity verifi- cation' between the specified text and the password is executed.
Corporation Nec
G. Ronald Bell & Associates
LandOfFree
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