Data processing: speech signal processing – linguistics – language – Speech signal processing – Recognition
Reexamination Certificate
2005-07-26
2005-07-26
Chawan, Vijay (Department: 2654)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Recognition
C704S248000, C704S256000
Reexamination Certificate
active
06922668
ABSTRACT:
This invention relates to an improved method and apparatus for speaker recognition. In this invention, prior to comparing feature vectors derived from speech with a stored reference model the feature vectors are processed by applying a speaker dependent transform which matches the characteristics of a particular speaker's vocal tract. Features derived from speech which has very dissimilar characteristics to those of the speaker on which the transform is dependent may be severely distorted by the transform, whereas features from speech which has similar characteristics to those of the speaker on which the transform is dependent will be distorted far less.
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British Telecommunications Public Limited Company
Chawan Vijay
Nixon & Vanderhye P.C.
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