Electrical audio signal processing systems and devices – Hearing aids – electrical – Specified casing or housing
Patent
1990-12-17
1993-08-31
Knepper, David D.
Electrical audio signal processing systems and devices
Hearing aids, electrical
Specified casing or housing
381 42, G10L 900
Patent
active
052416496
ABSTRACT:
In a voice recognition method, a d-by-J demensioned reference voice pattern is prepared for each target word, when J denotes a predetermined number of frames and d denotes a predetermined number of characterizing parameters per frame. A spoken input word is partitioned between its start and end points into J frames, and d characteristic parameters are extracted for each frame to form a d-by-J demensioned input time-series vector. The resemblance between the input vector and each of the reference voice patterns is then calculated using a statistical distance scale, and the spoken word is identified with the reference pattern providing the highest resemblance. The method requires fewer calculations and yet attains a high recognition rate through the normalization of the input voice word for both spectrum and time.
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Knepper David D.
Matsushita Electric - Industrial Co., Ltd.
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