Hi All, I am using Linux Fedora FC4 and M-Audio Audiophile USB. This card works perfectly in output when using ALSA directly, e.g. alsaplay -d plughw:2 works fine! Problems rise when I try using Jack. even if I managed to get it starting with jackd -dalsa -dplughw:2,0 -r44100 -p1024 -n4 -Pplughw:2,0 -S -o2 The sound out I get is weird, a distortion that looks to be related to buffer cycles etc. I am using jackd 0.100.1 Anyone that can help me on this? I see that some of you could get it working fine with Jack. How did you manage to do so? So far I cannot record with ALSA too but it would be great to solve at least the jack issue. Thank you in advance for the help, Ronny