auto-tune

Etymology
, a trademark registered to.

Noun

 * 1)  An audio processor that corrects the pitch of a recorded track, also used to distort vocals in electronic music.

Verb

 * 1)  To tune (an engine, industrial process, etc.) automatically.
 * 2)  To correct the pitch of a vocal or instrumental performance.

Related terms

 * the Cher effect
 * the Cher effect