[LAU] Output to 2 sound cards simultaneously

Mark Constable markc at renta.net
Fri Sep 28 00:49:25 EDT 2007


On Friday 28 September 2007, Lee wrote:
> > As a baseline, say I started with this, where could I go
> > from here to get an app (ie; Amarok) to play back out two
> > soundcards at once ?
> 
> It's one of those things that seems like it should be easy but is in
> fact nearly impossible.  The problem is that the sound cards cannot be
> kept in sync on the hardware level.

I can appreciate for input that would be a critical
showstopper but for output it's not such a big deal.

I mainly want to start down the track of trying to
understand asoundrc magic and I thought this would be
a nice gentle and practical first step.

Could anyone offer an asoundrc recipe for me to work
from (seeing I obviously have no idea at all) ?

On 2007-09-28 14:43, david wrote:
> Hmm, maybe you could play it to JACK and have JACK route it to both 
> sound cards?

Can you suggest some apps or utilities for this purpose ?

I've tried to use Jack over the past few years but I
mostly end up with a locked up machine. 

--markc



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