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Auto-Tune

From HitStory, the pop encyclopedia of School of Rock · Technology

Andy Hildebrand used mathematics from the oil industry to measure the pitch of a voice. His software Auto-Tune, released in 1997, nudges flat or sharp notes imperceptibly to the right pitch. For Cher's Believe, the producers set the correction speed to zero. As a result, the voice jumped from note to note without a transition, with an audible kink. What was supposed to be inaudible became an effect. T-Pain made it his trademark, and in trap, afrobeats and hyperpop, Auto-Tune became an ordinary part of the voice.

Listening

Listening tip. Listen to the long notes: does the voice glide naturally, or does it jump from note to note with a kink?

In School of Rock

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See also