On 02 Nov 2003 13:32:19 -0600 Jan Depner <eviltwin69@xxxxxxxxxxxx> wrote: > 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. I wanted to play a guitar through jack-rack and I heard this noise. Did it come from jack-rack, a ladspa plugin, jackd, alsa, the soundcard ? This is why I tried to isolate the problem, ending with a very simple setup : jackd connects the input channel to the output channel PCM Out 1 assigned to H/W Out 1 (with the "PatchBay/Router" in envy24control). I still get the noise. I don't have this problem when doing true hardware monitoring of the input : be it by assigning H/W In 1 to H/W Out 1 (with the "Pathbay/Router") or by assigning Digital Mixer L to H/W Out 1 (with the"Patchbay/Router") and unmuting/raising the slider of channel H/W In 1 with the "Monitor Mixer" pane in envy24control. > Jan Thanks. -- David