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Bass pod and noise
Posted: Sat Feb 28, 2009 9:22 am
by jrech
I am hoping someone might be able to help me troubleshoot. I have a bass pod, and when I have the direct out and the mod out plugged in, I get a high pitch hum through the direct out. when I unplug the mod out, the hum goes away. I can not hear the hum through the mod out when I run it directly into DP. Does anyone have any ideas on how to solve this problem?
J-
Re: Bass pod and noise
Posted: Mon Mar 02, 2009 1:47 pm
by HCMarkus
Classic Ground Loop symptom. First, try powering all audio devices from a power strip fed from a single AC Wall Outlet. If that doesn't work, try lifting the ground on one of your connecting cables. To accomplish this, cut the shield and leave the center conductor intact on a standard unbalanced audio cable. Or you can use a direct box with ground lift. Also, USB connections can sometimes cause ground loop issues. Cutting the shield and ground wire in the USB cable can fix trouble there. Check out Rane's guide to audio connections for lots of detail. Good luck!
