Graillon!

Auto-Tune is an audio plugin commonly used in the Pop music industry. Auto-Tune corrects intonation and timing problems in vocals or solo instruments, without distortion or artifacts, while preserving all of the expressive nuance of the original performance - with audio quality so pristine that the only difference between what goes in and what comes out is the intonation and timing.

With GSnap you can get an auto-tune effect. It can be used subtly to correct the pitch of a vocal, or, with more extreme settings, to create a robot-voice effect. It requires a monophonic input signal to operate.

"Pop music in a can!"