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dabbi2000

Member

From: Reykjavik, Iceland

Registered: 2011-09-28

Posts: 119

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[SOLVED] Alsa - how to play audio to particular speaker?

Bear with me please, I've done my reading, Googlin and trial and errors...

I have a 7.1 audio system but with 5.1 speaker configuration.

I understand how to use ALSA to route channels but before doing that I want to know the how the default Alsa configuration is playing audio to each speaker. But I cannot find a way to play to a particular speaker, aplay -c option only seems to specify how many channels to use, not wich speaker to play to? I know of speaker-test but that's not what I'm looking for.

Last edited by dabbi2000 (2013-05-06 13:28:52)

Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 30,501

Website

Re: [SOLVED] Alsa - how to play audio to particular speaker?

See one of my asoundrc files here which I based off of one in Breb's signature.

Mine defines 8 different pcm outputs for each of the 7.1 outputs.  This allows me to send output to a specific speaker with commands such as "aplay -D OutX <audiofile>" where X is a number 1-8.

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"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman

dabbi2000

Member

From: Reykjavik, Iceland

Registered: 2011-09-28

Posts: 119

Website

Re: [SOLVED] Alsa - how to play audio to particular speaker?

Long way for what I'd thought was an easy command line task, but it works, thanks!