too complex - anything more simple?

Hi, I was searching the net for a simple program that could disguise voices on wav files. I found this Cylonix and tried the demo, but I couldn't make heads or tails out of its interface. I was hoping for "Step 1, load the original wav. Step 2, fiddle with controls to distort the wav, Step 3, save the results." The dozen-plus buttons on this thing leave me nowhere. Does anyone know of a product like I am hoping for? Soundblaster comes with a couple dozen "Environments", some of which disguise voices pretty well (like "UNDERWATER") but they are too crazy sounding. Does someone make additional Environments?