----- Original Message ----- I compiled the aloop module and it works fine, but when I try setting up the asoundrc as described, and use the device, I get. ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slave aplay: main:654: audio open error: Invalid argument Does anyone know what this uninformative error mean? Has anybody ever had luck with a similar setup? ----- Hi, I use this setup as described in the wiki page (I wrote that page myself ;) and have no issue. You should provide the version numbers of libasound and alsa, how they were installed, etc. Version mismatch can cause this kind of problems I think. J. _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user