On Sun, 2003-11-02 at 12:07, David wrote: > > Bad noise comes when I set H/W Out 1/2 to PCM Out 1/2 and connect using > jackd the alsa capture port (that map to a H/W In) to the alsa playback > port 1/2 (that maps to PCM Out 1/2). > > Is this a better description ? > Yes. I believe Joe is correct - it sounds like a feedback loop to me. Why are you connecting these? If you want to monitor in real time just set HW Out 1/2 to Digital Mix L/R. Jan