User Manual

35
NOTE: Stereo noise is only
available from stereo or mono-
>stereo versions of ARTICULATOR
Evo. If you have instantiated a mono
version, this button will be disabled.
FORMANT EXTRACTION SECTION
The controls in this section allow you to optimize
the formant extraction process for your specific
Control Signal.
Voice Type
Use this control
to select the
range of the track
you will be processing. Choices include soprano
voice, alto/tenor voice, baritone/bass voice and
instrument (a general setting for anything that isn’t
actually a vocal).
Matching the appropriate algorithm to the input
results in more accurate formant extraction.
To select voice type, click on the Voice Type pop-
up and then select the desired range from the
pop-up list.
NOTE: Choosing the wrong Voice Type
(or just forgetting to set it at all) can
result in compromised performance.
Pay attention.
Tracking
In order to
accurately analyze
the Control Signal,
ARTICULATOR
Evo requires
a periodically
repeating waveform,
characteristic of a
voice or solo instrument. The Tracking control
determines how much variation is allowed in the
incoming waveform for ARTICULATOR Evo to
still consider it periodic.
If you are working with a well-isolated solo
Control Signal (e.g., tracking in a studio or from
a multitrack master) you can typically set the
Tracking control to 25 and forget it.
If, on the other hand, your Control Signal is noisy
or not well-isolated, or you are dealing with a
particularly breathy or guttural voice, it may be
necessary to allow more signal variation (higher
Tracking numbers). However, under these
circumstances tracking is not guaranteed and a
too “relaxed” setting may negatively affect the
accuracy of the formant extraction.
To adjust Tracking, click on the knob and move
the cursor up to turn the knob clockwise, or
down to turn it counterclockwise. Remember,
higher numbers allow more variation, while lower
numbers require less.
Command (Mac)/Alt (PC) clicking on the knob will
reset it to its default value of 25.
FORMANT MODULATION SECTION
Another way of looking at the Control Signal’s
formant information is to think of it as a real time
model of the vocal tract of the person singing or
speaking. The controls in this section allow you
to modify the extracted formant information by
modifying the geometry of that modeled throat.
Throat Length
This control lets
you increase or
decrease the length
of the modeled
throat that is
applied to the Audio
Signal.
Values above
1.00 represent
a lengthening of the throat while values below
1.00 represent a shortening of the throat. The
actual values represent the percentage change
in the throat length. For example, a value of 1.20
represents a 20% increase in throat length, while
a value of 0.80 represents a 20% decrease in
throat length.
The effect of this control is so dependent on the
combination of each specific Control Signal and
Audio Signal that the only guideline for working
with it is to just check out its entire range and
discover what works best for your particular
needs.