expression pedal noise

Q & A for building and interfacing your rack gear with Ground Control Pro and GCX-based systems.
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tibbar49
Posts: 9
Joined: Mon Sep 20, 2010 12:15 pm

expression pedal noise

Post by tibbar49 »

hello,
I am running two boss EV5 expression pedals through my GCP. they both work fine, until recently I've been hearing zipper like noise through my amp whenever I move my pedals. not sure what causes this. any idea?

JohnClark
Posts: 7494
Joined: Tue May 05, 2009 2:33 pm
Location: The Lab

Re: expression pedal noise

Post by JohnClark »

If this just started happening, then most likely there is a failing shield on an audio cable somewhere in your setup.

Are the Ground Control Pro and the two expression pedals the only things out on the floor? Are they mounted to a board or anything metal?
What are the MIDI devices in this system? If there are many devices then try breaking the rig down to the simplest setup that still yields the problem.

I hope that helps!
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