Generating separate analog audio programs from a digital link

Details Generating separate analog audio programs from a digital link Generating separate analog audio programs from a digital link

H - Electricity

04

H

H04H 40/18 (2008.01) G06F 3/16 (2006.01) G10L 19/00 (2006.01) H04R 3/00 (2006.01)

Patent

CA 2408802

A codec in a processor-based system handles at least two separate audio programs at the same time. This may be useful, for example, for simultaneously playing one audio program while recording another audio program. A first digital to analog converter pair may be coupled to a first mixer and a second digital to analog converter pair may include a second mixer. Thus, two separate audio programs may be handled at the same time, each by a separate digital to analog converter and mixer.

Un codec dans un système reposant sur un processeur gère, en même temps, au moins deux programmes audio séparés. Ceci peut s'avérer utile, par exemple, pour lire simultanément un programme audio, tandis que l'on enregistre un autre programme audio. On peut coupler une première paire de convertisseurs numérique-analogue à un premier mélangeur et une seconde paire de convertisseurs numérique-analogue peut comprendre un second mélangeur. Ainsi, on peut gérer, à la fois, deux programmes audio séparés, respectivement par l'intermédiaire d'un convertisseur séparé numérique-analogue et un mélangeur.

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