Excitation signal encoding method and device capable of encoding

Details Excitation signal encoding method and device capable of encoding Excitation signal encoding method and device capable of encoding

1995-06-21

1997-11-11

MacDonald, Allen R.

395 228, 395 232, G10L 302

Patent

active

056872844

ABSTRACT:
In an excitation signal encoding method comprising the steps of, dividing a speech signal into a plurality of frames, dividing each of the plurality of frames into a plurality of subframes each of which has a subframe length, and generating a new excitation signal by the use of an adaptive code book comprising a plurality of adaptive code vectors and a sound source code book comprising a plurality of sound source code vectors, the generating step is carried out in a predetermined period when the predetermined period is shorter than the subframe length. The generating step is carried out by the use of the adaptive code vector that is calculated using the excitation signal generated in the former period and by the use of the sound source code vector of the present period.

REFERENCES:
patent: 5230036 (1993-07-01), Akamine et al.
patent: 5307441 (1994-04-01), Tzeng
patent: 5396576 (1995-03-01), Miki et al.
Schroeder et al., "Code-excited Linear Prediction (CELP): High-quality Speech at Very Low Bit Rates", IEEE Proc. of ICASSP, 1985, pp. 937-940.

Affiliated with

Also associated with

Rating

Excitation signal encoding method and device capable of encoding does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Excitation signal encoding method and device capable of encoding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Excitation signal encoding method and device capable of encoding will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1235565