for an installation I am going to tape a huge copper tape circuit on a wall that works as an interface to control various devices by touching/approaching the sensors. one end of the copper tape goes to the sensor, the other one to the arduino. I want to connect 10 sensors and some leds wit the arduino in a circuit of circa 2x4m. imagine it like this but much bigger: http://hlt.media.mit.edu/?p=2505
. now: the idea is to transform the interfering signals of this circuit into a drone-like sound. how would you scan the interfering signal to an audio jack so that I can Input it into effects pedals etc??