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 AUTO-TUNE™
Pitch Correction for Voice or Solo Instrument
Hailed as a
"Holy Grail of recording" by Recording Magazine, Auto-Tune
is the worldwide standard in professional pitch correction. It corrects
intonation problems in vocals or solo instruments, in real time,
without distortion or artifacts, while preserving all of the expressive
nuance of the original performance. Auto-Tune offers audio quality
so pristine that the only difference between what goes in and what
comes out is the intonation.
The precision
by which Auto-Tune detects pitch is extraordinary. At a frequency
of 400 Hz and a sample rate of 44100, the Auto-Tune DSP algorithm
computes the pitch to an accuracy of .0001 samples per cycle, or
.0004 Hz. At this resolution, the very question "What is pitch?"
becomes relevant. That is, as the pitch of typical performances
continuously change, the amount of variation in pitch, even over
the time of a few cycles, changes greatly in comparison to the accuracy
by which Auto-Tune computes pitch.
The pitch
computed by Auto-Tune is a mathematical estimate of the cycle period
repetition rate over the last two (or sometimes the last four) cycles.
Main Features
- The Automatic
Mode instantaneously detects the pitch of the input, identifies
the closest pitch in a user specified scale and corrects the input
pitch to match the scale pitch. Major, minor, chromatic and 26
historical and microtonal scales provide unprecedented control
of the output tonality.
- Select any
key and scale - minor, major, chromatic and 26 historical and
microtonal scales provide unprecedented control of the output
tonality.
- Specific
Scale notes can be removed, allowing a wider range of pitch correction
for neighboring notes.
- Individual
Scale notes may be "bypassed." When the input pitch
is near that note, the input is passed through with no correction.
Having trouble hitting a single note? Bypass all the rest of the
Scale notes, and Auto-Tune will only apply correction to the problem
note.
- The Scale
can be de-tuned, allowing pitch correction to any desired pitch
center.
- The variable
Retune rate allows matching correction speed to any style of the
performance. A fast Retune rate is appropriate for a performance
with rapidly-changing pitches or where substantial correction
is required. A slower rate will preserve expressive gestures while
accurately adjusting the pitch center to be in tune.
- The Vibrato
Section lets you add a vibrato to a performance with variable
depth, rate and onset delay.
- The Sensitivity
Control optimizes Auto-Tune's pitch-detection performance for
a wide range of signal quality.
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