after installed ALSA ,
you can use eSound in all the software(such as mplayer,xmms),
so that you can use multi stream.
But who can tell me how to use rear speakers ,such as in mplayer(which plays ac3 xvid)?
My rear speakers are silent always except I check the "Duplication Front",but they arenot the real rear sound stream,
so anybody can help me ?
thx a lot.