Hello. Can anyone help? I want to control an audio filter (from a mic) with a midi signal - just note values. I have a midi interface attached to a living plant. The interface sends midi notes depending on the plant's varying resistance. I want to do a performance where I speak, and the plant "interferes with" my voice. So i want to feed the mic signal through a filter such as hi-pass or something, and let the plant control that filter. Any ideas?