Hi! I never used virtualbox or whatever. I guess it is seem kind of virtual machine like vmware? I can help you with mplayer a bit though. It's running on my system and it works just fine. Nowadays I like to have an easy life though and I use JACK. But in the old days I just did this: mplayer -ao asa,default file.whatever Worked wonderfully. OK I'm a bit left behind, I'm still using Linux 2.6.23. You might try the following: Take an example from alsawiki, that uses a simple plug PCM device. Might look like this: pcm.my_dev { type plug slave { pcm "hw:0" } } And I found setting the mixer correctly a problem, when I started using my card. I always use alsamixer, which is the ncurses (interactive textbased) variant. I set the IEC958 items both to PCM out, then made sure to setup all volume controls, set the sample clock and all the syncing stuff connected to it to one rate (48000Hz for me, 44100Hz is fine, it's CD quality). Then you might want to create a device in .asoundrc, that gives just two INs and two OUTs. You can also tell ALSA to use JACK for audio I/O. With that you can easily have a device which has only 2INs and 2OUTs. I did this. It looks like that: pcm.myjack { type jack palyback_ports { 0 system:playback_1 1 system:playback_2 } capture_ports { 0 system:capture_1 1 system:capture_2 } } pcm.!default { type plug slave { pcm "myjack" } } You can see ALSa starts counting at 0 and jack starts at 1. If you don't want your two XLR microphone inputs, but a pair of the simple chinc inputs then just exchange system:capture_1 and 2 to 3 and 4. It works with mplayer. So if your mplayer has no JACK support, no problem. You could just use this way around. Give it a try, perhaps even VirtualBox takes it easy with that solution. I think it's possible. Kindest regards Julien -------- Music was my first love and it will be my last (John Miles) ======== FIND MY WEB-PROJECT AT: ======== http://ltsb.sourceforge.net the Linux TextBased Studio guide ======= AND MY PERSONAL PAGES AT: ======= http://www.juliencoder.de ------------------------------------------------------------------------------ Register Now & Save for Velocity, the Web Performance & Operations Conference from O'Reilly Media. Velocity features a full day of expert-led, hands-on workshops and two days of sessions from industry leaders in dedicated Performance & Operations tracks. Use code vel09scf and Save an extra 15% before 5/3. http://p.sf.net/sfu/velocityconf _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user