In one embodiment, a method of signal processing includes encoding a low-frequency portion of a speech signal into at least an encoded narrowband excitation signal and a plurality of narrowband filter parameters; and generating a highband excitation signal based on a narrowband excitation signal. The...http://www.google.fr/patents/US20060282263?utm_source=gb-gplus-shareBrevet US20060282263 - Systems, methods, and apparatus for highband time warping
Systems, methods, and apparatus for highband time warping
Numéro de demande: 11/397,370 Numéro de publication: US 2006/0282263 A1 Date de dépôt: 3 avr. 2006 Brevet délivré: US8078474 ( Date de délivrance 13 déc. 2011)