Speaker identification and verification system

Details Speaker identification and verification system Speaker identification and verification system

1994-02-28

1996-05-28

Moore, David K.

Electrical audio signal processing systems and devices

Hearing aids, electrical

Specified casing or housing

395 255, 395 24, 381 42, G10L 506, G10L 900

Patent

active

055220126

ABSTRACT:
The present invention relates to a speaker recognition method and system which applies adaptive component weighting to each frame of speech for attenuating non-vocal tract components and normalizing speech components. A linear predictive all pole model is used to select frames for an adaptively weighted cepstrum. Frames with a predetermined number of resonances are selected for cepstrum analysis. An adaptively weighted cepstrum is determined from a new transfer function. A normalized cepstrum is determined having improved characteristics for speech components. From the improved speech components, improved speaker recognition over a channel is obtained.

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