Auto-Tune

Auto-Tune is pitch-correction software by Antares Audio Technologies that adjusts vocal intonation. Its settings can also create an overt, synthetic vocal sound.

Pitch correction: Audio processing that adjusts notes to bring a performance closer to intended pitches. Auto-Tune is a widely used software implementation of this broader technique.
Andy Hildebrand: An engineer and musician who developed Auto-Tune and founded Antares Audio Technologies. His work on seismic data analysis informed the software’s pitch-estimation approach.
Vocal production: The recording and processing of singing for a finished musical release. Pitch correction is one part of the wider process of shaping recorded vocals.
Celemony Melodyne: A pitch-editing software product that lets users manipulate individual notes in recorded audio. Melodyne offers detailed note-by-note editing, unlike Auto-Tune’s familiar real-time correction workflow.
Pitch detection: The estimation of a musical sound’s fundamental frequency over time. Auto-Tune must estimate the incoming vocal pitch before it can correct it.
Antares Audio Technologies: An audio-software company that develops Auto-Tune and other music-production tools. The company created and continues to develop Auto-Tune.
Digital audio workstation: Software for recording, editing, arranging, and mixing digital audio. Auto-Tune commonly operates as a plug-in inside a studio workstation.
Manual pitch correction: The selective adjustment of vocal notes by an engineer using audio-editing tools. Manual edits can target individual errors without applying continuous automatic correction.
Equal temperament: A tuning system dividing an octave into equal logarithmic pitch intervals. Its notes provide a common reference grid for setting correction targets.
Seismic reflection: A geophysical method that uses reflected sound waves to investigate underground structures. Hildebrand adapted signal-processing ideas from locating underground oil deposits.

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