User Manual

24
Natural Vibrato
The Natural Vibrato
function allows real-
time modification
(either increase or
decrease) of the depth
of any vibrato present
in the input audio
while preserving the
original shape and character of the vibrato.
This function uses the same Stochastic
Optimal Linear Estimation Theory as the
Targeting Ignores Vibrato function (described
below) to dierentiate between vibrato and
intended pitch changes, adjusting the vibrato
depth while leaving intended pitch changes
intact.
The Natural Vibrato function acts
independently of the pitch correction
functions. Of particular note is the fact that
setting a scale note or notes to Bypass still
allows vibrato adjustment for those notes. So,
if you want to adjust a performance’s vibrato
while making no other pitch changes, you can
simply set all scale notes to Bypass and still use
the Natural Vibrato function to adjust vibrato
depth.
NOTE: This function acts only on
vibrato present in the original
performance. If the original
performance does not contain vibrato, this
control will have no audible eect.
ANOTHER NOTE: Natural Vibrato
adjustments function independently
of the Create Vibrato functions
described below. However, since both
functions can operate simultaneously, they can
interact in ways that may or may not be useful,
depending on your intent. In most cases, you
should probably use one or the other.
The default Natural Vibrato setting is .
Double-clicking or Command (Mac)/Control
(PC) clicking the Natural Vibrato knob will
reset it to that value.
Targeting Ignores Vibrato
Target note identification is the process by
which Auto-Tune decides which note is the
note the performer intended to sing or play,
so that it may re-tune any pitch errors closer
to that note. Normally, the target note is the
nearest active scale note to the current input
pitch.
The Targeting Ignores Vibrato feature
is designed to help with target note
identification when the performance includes
vibrato so wide that it approaches adjacent
scale notes. The most common symptom of
this problem is a pronounced “warbling” as the
input is alternately tuned to each of the upper
and lower adjacent notes.
When this function is ”On,“ Auto-Tune 8 uses
the impressively named Stochastic Optimal
Linear Estimation Theory to attempt to
recognize vibrato and dierentiate between
it and intended note changes. Our testing has
shown that it works a lot of the time — but
not always (it depends a great deal on the
actual performance). When it works, Auto-
Tune 8 ignores the wide vibrato as far as target
note selection is concerned. When it doesn’t,
it works pretty much the same way it would
work if the function were ”O.”
The default state of this control is O. When
you’ve got a vibrato problem, try turning it on
and see if it helps.