A multi-rate speech codec supports a plurality of encoding bit rate modes by adaptively selecting encoding bit rate modes to match communication channel restrictions. In higher bit rate encoding modes, an accurate representation of speech through CELP (code excited linear prediction) and other associated...http://www.google.fr/patents/US6385573?utm_source=gb-gplus-shareBrevet US6385573 - Adaptive tilt compensation for synthesized speech residual
Adaptive tilt compensation for synthesized speech residual
