User Manual
Table Of Contents
12
The sonic character of the breathiness will 
depend both on the articulation of the original 
vocal and, more dramatically, the setting of the 
Highpass Frequency control described below. 
Command (Mac)/Control (PC) click the control 
to reset it to its default value of 0. 
Highpass Frequency 
This control lets you set the high pass 
frequency of the breathiness component  
(i.e., the frequency above which the 
breathiness will be present). This frequency 
determines the audio range and character of 
the breathiness effect. 
At high settings, the effect will be rather 
whispery and ethereal (depending, of course, 
on the original vocal and the Mix amount). At 
lower settings, the effect is more of a raspiness 
(again, depending on the mix). Experimentation 
is the best way to become familiar with the 
possibilities. 
Command (Mac)/Control (PC) click the control 
to reset it to its default value of 4000 Hz. 
The remaining controls are used to define the 
model vocal tract:
THROAT 
MODELING 
Model Throat 
Length
The Throat 
Length control 
allows you to 
globally lengthen 
or shorten the 
modeled throat. 
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. 
Changes made to this control are reflected on 
the Graphic Throat Display described below. If 
you have used that display to create a custom 
throat contour, this control will preserve the overall 
contour while scaling it by the selected amount.
NOTE: While this control gives you the 
ability to radically change the throat 
length, keep in mind that the variation 
in the length of human vocal tracts is rarely more 
than about 25% in either direction. If you are 
looking for a “realistic” vocal characteristic, start 
with modest settings of this control. (As a visual 
reference, this range is indicated by color on the 
control scale.) More extreme settings can produce 
dramatic results, but probably not what anyone 
would call “realistic.” 
Command (Mac)/Control (PC) click the control 
to reset it to its default value of 1.00.










