[MPlayer-users] Simultaneous output to multiple soundcards

[Philip Walden]

Philip Walden wrote:
> Hello
>
> I scanned the documentation, but could not spot anything that helped 
> with this question.
>
> I have two sound output devices on my laptop.
>
> Is there a way to play sound files to both of them simultaneously?
>
> One feeds a nearby USB speaker system. The other feeds a wireless 
> speaker system elsewhere in the house via the line out on the internal card.
>   

PulseAudio solved this problem. You can create a virtual sink that 
directs output to both cards. It even accounts for the delays inherent 
in each devices