Hello, I think I've done the things to my /etc/asound.conf to make dmix work .. and I have two command line scripts to make multiple requests for sound viz: aplay /wavi/sounds/file1.wav & aplay /wavi/sounds/file2.wav & etc etc and: mplayer -ao alsa:device=dmix /av/afile.avi I can play many, many sounds at once using the first commands repeated many times quickly _or_ I can do the same thing have many instances of mplayer running ok, with sound, at once. _but_ I cannnot get the wav files to play if even one instance of mplayer is running or vice versa. In other words, the dmix seems, to me, to only allow multiple instances of the same application to make sounds simultaneously. In particular I find that the Flightgear sim refuses to run if any other app is using sound; I expected the dmix to multiplex sound from different apps. Appreciate any help,thanks, polly <=>