Open your preferred music production program, for example Logic or Cubase.
Highlight the vocal that requires correction. Auto-tune works by manipulating the audio signal to a different pitch. By clicking on the vocal, you assign subsequent edits to that particular piece of audio.
Click "Tools" and select "Auto-tune." If you don't have the official Antares Auto-Tune plug-in, select your program's generic equivalent, for example, "Pitch-Correct" if using Logic, or "G Snap" if using Mixcraft.
Type in the term that best describes your vocal range, for example "tenor" or "baritone." If you put in the wrong register, the pitch alterations will jump from one register to another, creating a very artificial and undesirable sound. If you notice jumping in your notes once you've applied Auto-tune, alter this parameter.
Click the "S" icon on the vocal track to be corrected. This solos the audio, muting everything else.
Press "Play" so you can hear the effect in real-time.
Set "Correction Mode" to "Auto" by toggling the virtual button. This applies the correction effect to all out-of-tune notes.
Set the "Retune Speed" parameter to approximately "20." The distinctive "robotic" sound heard on Cher's "Believe" was achieved by setting the "Retune Speed" parameter to "Zero." This creates an instant and distinctly unnatural change in pitch.
Adjust the "Humanize" parameter to your preference. This setting tempers the other settings to add a touch of pitch inaccuracy. Not enough to make the vocal sound bad, but enough to make it believable. Too much accuracy will make your vocal sound artificial.
Adjust the "Natural Vibrato" to your preferred level. Vibrato is a deliberate modulation of pitch. Naturally, this conflicts with Auto-tune's purpose, which is to eliminate pitch-deviation by correcting sharp and flat notes, including vibrato. However, the "Natural Vibrato" parameter allows you to add vibrato back on.