Coded domain noise control

Details Coded domain noise control Coded domain noise control

G - Physics

10

L

G10L 21/02 (2006.01) H04B 3/20 (2006.01) H04L 1/00 (2006.01) H04M 9/08 (2006.01)

Patent

CA 2378035

A communications system (8) transmits digital signals using a compression code comprising a plurality of parameters including a first parameter. The parameters represent an audio signal comprising a plurality of audio characteristics, including a noise characteristic. The compression code is decodable by a plurality of decoding steps. A processor (150) is responsive to the compression code to read at least the first parameter. Based on such signals, the processor adjusts the first parameter and writes the adjusted first parameter into the compression code. As a result, the noise condition is effectively managed.

L'invention porte sur un système de télécommunications (8) émettant des signaux numériques à l'aide d'un code de compression à plusieurs paramètres dont un premier. Lesdits paramètres représentent un signal audio incluant diverses caractéristiques audio dont une caractéristique de bruit. Le code de compression se décode en plusieurs étapes. Un processeur (150) en réponse au code de compression lit au moins le premier paramètre. Puis en fonction de ces signaux ajuste le premier paramètre puis l'inscrit dans le code de compression. On gère ainsi efficacement l'état du bruit.

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