Method and apparatus for speech recognition

Details Method and apparatus for speech recognition Method and apparatus for speech recognition

1984-06-04

1989-03-28

Kemeny, Emanuel S.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

G10L 500

Patent

active

048171590

ABSTRACT:
Speech parameters (P.sub.h and P.sub.l) are derived for consonant classification and recognition by separating a speech signal into Low and High frequency bands, then in each band obtaining the time first-derivative, from which the min-max differences (power dip) are obtained (P.sub.h and P.sub.l). The distribution of P.sub.h and P.sub.l in a two-dimensional plot for a discriminant diagram classifies the consonant phoneme.

REFERENCES:
patent: 3023277 (1962-02-01), Mathews
patent: 3238303 (1966-03-01), Dersch
patent: 3395249 (1968-07-01), Clapper
patent: 3946157 (1976-03-01), Dreyfus
patent: 4435617 (1984-03-01), Griggs

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