Vector adaptive predictive coder for speech and audio

Details Vector adaptive predictive coder for speech and audio Vector adaptive predictive coder for speech and audio

G - Physics

10

L

354/47

G10L 19/14 (2006.01) G10L 19/06 (2006.01) G10L 19/08 (2006.01) G10L 19/00 (2006.01)

Patent

CA 1336454

Disclosed is an apparatus and method to encode in real time analog speech or audio waveforms into a compressed bit stream for storage and/or transmission, and subsequent reconstruction of the wave form for reproduction. Also disclosed is an apparatus and method to provide adaptive post-filtering of a speech or audio signal that has been corrupted by noise resulting from a coding system or other sources of degradation so as to enhance the perceived quality of the speech or audio signal. The invention combines the power of Vector Quantization (VQ) and Adaptive Predictive Coding (APC) by providing a Vector Adaptive Predictive Codes (VAPC) which provides high-quality speech at bit rates between 4.8 and 9.6 kb/s, thus bridging the gap between scaler coders and VQ coders.

563229

Affiliated with

Also associated with

Rating

Vector adaptive predictive coder for speech and audio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vector adaptive predictive coder for speech and audio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vector adaptive predictive coder for speech and audio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1319921