Re: [Alsa-user] Duplicate sound in two sound cards

[Lee R. <rlr...@jo...>]

On Sun, 2006-10-29 at 15:44 -0300, Salatiel Filho wrote:
> Hi guys, i have two sound stereo cards on my machine and i'd like to
> know if it is possible play the same sound in both at same time.
> I'm not talking about virtual 4 channels sound cards , i just want ,
> 
> 
> Channels : 
> Left on card 0 = left on card 1 
> right on card 0 = right on card 1
> 
> 
> Could anyone provide me a sample to put on my asoundrc ?

Cannot be done easily.  The two cards will consume data at different
rates as their clocks will not be synced.

You could set up 2 instances of JACK, run one for each card and connect
them with netjack or jack_diplomat, but that will only allow you to run
JACK-aware apps.

Lee