G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 21/02 (2006.01) A61F 2/18 (2006.01) A61N 1/05 (2006.01) A61N 1/36 (2006.01) H04R 25/00 (2006.01)
Patent
CA 2459326
A method of improving sound quality of audio signals that are digitally processed includes steps of extracting amplitude and frequency modulations from one or more narrow bands of the audio signal, and filtering and compressing those modulations to produce amplitude and frequency modulated audio signals that are digitally processed to provide an acoustic signal similar to the original audio signal. The methods may be used in auditory prostheses and telecommunication systems.
L'invention concerne un procédé permettant d'améliorer la qualité sonore de signaux audio traités de façon numérique. Ce procédé comprend les étapes consistant à extraire des modulations d'amplitude et de fréquence à partir d'une ou de plusieurs bandes étroites du signal audio et à filtrer et comprimer ces modulations, de manière à obtenir des signaux audio à modulation de fréquence et d'amplitude traités de façon numérique, afin d'obtenir un signal acoustique similaire au signal audio original. Les procédés selon l'invention peuvent être mis en oeuvre dans des prothèses auditives et des systèmes de télécommunication.
Nie Kai-Bao
Zeng Fan-Gang
Gowling Lafleur Henderson Llp
The Regents Of The University Of California
LandOfFree
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