Auto-Tune

Summary
Auto-Tune is an audio processor created by Antares Audio Technologies which uses proprietary software to alter pitch in vocal and instrumental performances. It was originally intended to disguise off-key inaccuracies and mistakes, and allows singers to perform apparently perfectly tuned vocal tracks despite singing slightly off-key; it works by slightly blending sung pitches to the nearest true semitone (to the exact pitch of the nearest tone in traditional equal temperament). Auto-Tune can be used as an effect to distort the human voice when pitch is raised or lowered significantly. The overall effect to the discerning ear can be described as hearing, for example, the voice leap from note to note stepwise, like a synthesizer.

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Season 1

 * Episode 15 Yo Gagga Gagga!: T-Pain loves his Auto-Tune.
 * Episode 21 Farto Tuner: Appeared in the ad.