Method and apparatus for the recognition of voice signal encoded

Details Method and apparatus for the recognition of voice signal encoded Method and apparatus for the recognition of voice signal encoded

1989-01-25

1992-02-25

Shaw, Dale M.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

G10L 708

Patent

active

050919490

ABSTRACT:
There is provided an automatic voice recognition system which utilizes time encoded speech. Through the determination of zero crossing information and waveform parameters of an input voice signal, a stream of time encoded speech symbols is obtained. The stream of time encoded speech symbols is then converted into a matrix format for comparison with reference matrices formatted from time encoded symbols of reference words thereby to provide an output signal indicative of the content of the input voice signal.

REFERENCES:
patent: 3125723 (1964-03-01), Spogen et al.
patent: 3278685 (1966-10-01), Harper
patent: 3940565 (1976-02-01), Lindenberg
patent: 4382160 (1983-05-01), Gosling et al.
patent: 4763278 (1988-08-01), Rajasekaran et al.
Ewing, "Computer Recognition of Speech Using Zero Crossing Information", IEEE Trans. Audio and Electroacoustics, vol. AU-17, No. 1, 3/69, pp. 37-40.

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