What is d name of d voice effect used in Kanye West's STRONGER-chorus?

Question

i use fruity loops 6 and am tryin to get the effect used by Dart Punk and sampled by Kanye West in Stronger 'stroner,faster...'

Answer 1

I believe it's called a voice box, or voice synth. I saw a video of stevie wonder playing it once. It's connected to a keyboard, and will alter your voice pitch with the pressing of keys on the keyboard.