Note: this plug-in only works with a d8b running Service Pack 3 (see Downloads tab) and equipped with one or more optional UFX card(s).
Pitch Correction for Voice or Solo Instrument
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)