Re: output to from 2 sound cards at once

[Doug <dmcgarrett@xxxxxxxxxxxxx>]

On 07/22/2012 10:01 PM, Paulino Kenji Sato wrote:
> Hi,
> I think this can be done by the copy plugin.
> But not figured out how to do to use it.
>
> http://www.alsa-project.org/alsa-doc/alsa-lib/pcm_plugins.html
>
> Plugin: copy
> This plugin copies samples from master copy PCM to given slave PCM.
> The channel count, format and rate must match for both of them.
>
> pcm.name {
>          type copy               # Copy PCM
>          slave STR               # Slave name
>          # or
>          slave {                 # Slave definition
>                  pcm STR         # Slave PCM name
>                  # or
>                  pcm { }         # Slave PCM definition
>          }
> }
>
>
> How to define the master? Is not the default.
> One of .asoundrc tested configuration.
> pcm.copy {
>      type copy
>      slave {
>         pcm card1
>      }
> }
> pcm.card0 {
>      type hw
>      card 0
> }
> pcm.card1 {
>      type hw
>      card 1
> }
>
> speaker-test -c 2 -D copy
> Play only on card1.
>
>
>
> -
> Paulino
>
>
Thanx, Paulino.  Where should I put this code? It must be a aprt of some 
script, somewhere.

--doug

-- 
Blessed are the peacekeepers...for they shall be shot at from both sides. --A.M. Greeley


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