on 05/09/04 22:54, Bill Rising at brising at Louisville.edu wrote: > Hey all you iMic users, > > OK, I fiddled around with the Turntable to iMic to USB hub recording > method, again, and it seems that the problem may not be a grounding > problem. > If I take the input from the turntable out of the iMic, I get the 60Hz > buzz, unless I (effectively) ground the iMic by holding it in my hand. > When the grounded by hand I get white noise (noise across the whole > spectrum). > > If I plug in the input from the turntable, I get the same white noise as > I do w/o the turntable. > > What am I supposed to do to not get this humongous amount of noise? > > I tried grounding the ground wire from the turntable to other grounds, > i.e. to the ground in the outlet strip to which the USB hub is connected, > to the case of the power supply of the computer, to the ground screw on a > non-turntable-friendly stereo plugged into the same powerstrip as the USB > hub, and to the antenna ground on the same stereo. > > Somehow I have an idea that there is some basic concept I am missing. > > Bill >
First thing, ground out the 60 Hz hum by any means you desire. I think maybe the white noise you are experiencing is not abnormal. I assume you are running Final Vinyl thru the computer's internal speakers. It's possible the amplifier gain may be set too high. If yo haven't already, click the EQ button on FV and in the second window turn on the preamp and select about 25 db of gain. This is the gain setting I have used successfully. Also check the box that you are recording from a turntable. In any event the volume of the white noise should be controllable with the gain settings. Bill | The next meeting of the Louisville Computer Society will | be May 25. The LCS Web page is <http://www.kymac.org>. | List posting address: <mailto:macgroup at erdos.math.louisville.edu> | List Web page: <http://erdos.math.louisville.edu/macgroup>
