configure one sound card as multiple devices
On the back of my PC I have several 3.5mm audio jacks, 1 green, 1 orange, 1 black etc. I know these are used for surround sound. I wanted to hookup two set of speakers, say one set to the green output and another set to one of the other colours, and then have simultaneous output on both jacks.
I guess what I'm asking is: is it possible to separate one sound card out into two devices. Or is it possible to remap the audio outputs. so that the orange jack duplicates the green one.
I would imagine that alsa or pulse can do this and I guess I'd need to edit either alsa's or PA's conf file, I'm just at a loss as to where to start.
I'm sure I've stumbled across similar posts before. But no amount of googling the subject has returned the results I'm looking for.