Voice signal processing device

Details Voice signal processing device Voice signal processing device

1991-01-03

1993-04-20

Kemeny, Emanuel S.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

G10L 500

Patent

active

052049060

ABSTRACT:
A noise-contained voice signal is cepstrum-analyzed to determine a peak and a mean-value thereof. When a peak is present, the signal is determined to be a vowel portion, and when a mean-value is large, the signal is determined to be a consonant portion, thereby allowing a voice portion to be accurately determined. Further, utilizing the detected result, noise is accurately canceled.

REFERENCES:
patent: 3566035 (1971-02-01), Noll
patent: 4058676 (1977-11-01), Wilkes
patent: 4630305 (1986-12-01), Borth et al.
The Journal of the Acoustical Society of America, vol. 41, No. 2, pp. 293-309, A. M. Noll and pp. 295-297; 302-305; 307-309.
Proceedings of the International Conference on Industrial Electronics Control and Instrumentation, Nov. 1987, pp. 997-1002 R. J. Conway et al.
Proceedings of International Conference on Acoustics, Speech & Signal Processing, Mar. 1984, pp. 18A.5.1-4, B. A. Hanson et al; P. 18A.5.2-3.

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