I have just bought an ETC, and I have started turning the knobs a lot. I am a graphic media designer myself and I can go all out on the images and programing them. I have already endured some difficult situation, like for example transferring the ntsc to PAL. but now I have some problems with good audio input. Can someone help me with a setup so that I can create visuals without making real music myself? just a number on the jack does not really have a good effect.