Communication system capable of improving a speech quality by ef

Details Communication system capable of improving a speech quality by ef Communication system capable of improving a speech quality by ef

1989-12-22

1992-02-25

Kemeny, Emanuel S.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 40, 381 38, 381 51, G10L 500

Patent

active

050919466

ABSTRACT:
In an encoder device for encoding a sequence of digital speech signals classified into a voiced sound and an unvoiced sound into a sequence of output signals, by the use of a spectrum parameter and pitch parameters, at every frame having N samples where N represents an integer, a judging circuit judges whether the digital speech signals are classified into the voiced sound or the unvoiced sound to produce a judged signal representative of a result of judging. A processing unit processes the digital speech signals in accordance with the judged signal to selectively produce a first set of primary sound source signals and a secondary sound source signals. The first set of primary sound source signals are produced when the judged signal represents the voiced sound and are representative of locations and amplitudes of a first set of excitation multipulses calculated at every frame. The second set of secondary sound source signals are produced when the judged signal represents the unvoiced sound and are representative of the amplitudes of a second set of excitation multipulses each of which is located at intervals of a preselected number of the samples.

REFERENCES:
patent: 4797926 (1989-01-01), Bronson et al.
patent: 4881267 (1989-11-01), Taguch

Affiliated with

Also associated with

Rating

Communication system capable of improving a speech quality by ef does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Communication system capable of improving a speech quality by ef, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Communication system capable of improving a speech quality by ef will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1898510