Speech processor

Details Speech processor Speech processor

1987-06-01

1990-03-27

Kemeny, Emanuel S.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 47, 3645135, 3701041, G10L 500

Patent

active

049127667

ABSTRACT:
In a speech processor such as a speech recognizer, the problem of distortion of extracted features caused by adaptation of the input automatic gain control (AGC) during feature extraction is solved by storing the AGC's gain coefficient along with the energy level of each extracted feature. At the end of the sampling period the stored gain coefficients are set equal to the minimum stored coefficient and the associated energy levels adjusted accordingly. The AGC circuit may comprise a digitally switched attenuator under the control of a microprocessor performing the speech recognition.

REFERENCES:
patent: 4000369 (1976-12-01), Paul et al.
patent: 4081607 (1978-03-01), Vitols et al.
patent: 4262355 (1981-04-01), Schiff
patent: 4696040 (1987-09-01), Doddington et al.
patent: 4757502 (1988-07-01), Meuriche et al.

Affiliated with

Also associated with

Rating

Speech processor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Speech processor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speech processor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1657011