I have an external USB hub with its own power supply. It introduces a hum when I have its PS connected. David W. Jones gnome@xxxxxxxxxxxxx authenticity, honesty, community http://dancingtreefrog.com On Mar 30, 2015 1:00 PM, Len Ovens <len@xxxxxxxxxxxxx> wrote: > > On Mon, 30 Mar 2015, Fons Adriaensen wrote: > > > Some week ago I had some spare time and decided to have a look at > > it. Connected the USB to my Linux workstation and connected some > > headphones to the mixer. Result: with all faders down and just > > the HP volume turned up there was a high level 50/100 Hz in the > > headphones. Removing the USB connection was enough to stop it. > > Good to know. The last mixer I bought I went through channel by channel > and each control looking odd things like that. I would have thought there > should be no analog Audio anywhere near the USB. > > -- > Len Ovens > www.ovenwerks.net > > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user@xxxxxxxxxxxxxxxxxxxx > http://lists.linuxaudio.org/listinfo/linux-audio-user _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
