Method of distinguishing voice from noise

Details Method of distinguishing voice from noise Method of distinguishing voice from noise

1988-10-11

1990-04-24

Harkcom, Gary V.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

G10L 300

Patent

active

049205684

ABSTRACT:
An inputted sound signal is sampled at intervals over a period and cepstrum coefficients are calculated from the sampled values. Cepstrum sum, distance and/or power are calculated and compared with appropriately preselected threshold values to distinguish voice (vowel) intervals and noise intervals. The ratio of the length of the voice intervals to the sampling period is considered to determine whether the sampled inputted sound signal represents voice or noise.

REFERENCES:
patent: 4092493 (1978-05-01), Rabiner et al.
patent: 4219695 (1980-08-01), Wilkes et al.
patent: 4359604 (1982-11-01), Dumont
patent: 4688256 (1987-08-01), Yasunaga
patent: 4700392 (1987-10-01), Kato et al.
patent: 4720862 (1988-01-01), Nakata et al.

Affiliated with

Also associated with

Rating

Method of distinguishing voice from noise does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of distinguishing voice from noise, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of distinguishing voice from noise will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-39434