On Tue, Feb 18, 2003 at 08:19:19PM +0100, Frank Barknecht wrote: > Hallo, > Frank Barknecht hat gesagt: // Frank Barknecht wrote: > > my Edirol UA-20 USB audio device has arrived, and I also got it to > > work: It was almost plug and play. But now I have a serious problem, > > and that is noise when moving the mouse. I'm at loss what to do. > > Everytime I move the pointer with mouse or touchpad on my Acer > > Travelmade, the UA-20 produces nasty screetching, crackling and > > scratching. This doesn't happen, when I unplug the power supply. The > > UA-20 gets its power from the USB-port, so I suspect that this creates > > the conflicts. > > > > Does anyone have an idea how to get rid of this noise? > > Another self-reply, sorry. But: I could remove the buzzing by going > with all my stuff (notebook, UA-20, power supply) into another room > and connecting it to another amplifier. So it seems, I am prey of a > buzz-loop (is that the word for "Brummschleife"?) in my room. Yup, I've had ground loops on my dell when connecting to a projector and a mixer. Put a DI box between the laptop and amp or unplug from the mains :) - Steve
