VowelSynth is a homemade speech synthesis machine, which consists of strings that are attached to DSP chips. When strings are struck, the device produces “ee”, “ah”, “oo”, or “uh” sounds. Video clip after the jump. Here’s how it works:
When you lay your hand onto the controller, the tips of your fingers correspond to your mouth and your forearm corresponds to the back of your throat. The more you press down, the more you open that part of the throat.