Voice Changer
Made with the HT8950 IC, the Voice Changer has seven steps of frequency shift and 2 special effects (vibrato and robot). Housed in an old Dell computer power supply case with an integrated speaker it can be used to annoy your friends anywhere, or you can use the 1/4" out to spread the joy through an even larger amplifier. A favorite thing to do with the Voice Changer in performances is to tweak the gain so that it picks up the sound in the room, modulates it, and then feeds it through the loudspeakers back into the room.
