User Manual
Table Of Contents
13
Model Throat Width
The Throat Width control allows you to globally 
widen or constrict the modeled throat. Values 
above 1.00 represent a widening of the throat 
while values below 1.00 represent a narrowing  
of the throat. 
The actual values represent the percentage 
change in the throat width. For example, a value 
of 1.20 represents a 20% increase in throat width, 
while a value of 0.80 represents a 20% decrease 
in throat width. 
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: Similar to the Length control 
above, this control gives you the ability 
to radically change the throat width. 
Again, if you are looking for a “realistic” vocal 
characteristic, start with modest settings of this 
control. (And again, 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.
MODEL GLOTTAL WAVEFORM
As was explained above in the Source Glottal 
Waveform section, the glottal waveform is the 
waveform produced by the vibration of the vocal 
chords. We used the Source Glottal Waveform 
control to help THROAT Evo neutralize the effect 
of the original vocal’s glottal waveform. The Pulse 
Width and Voice Type controls let you define the 
glottal waveform you want to model. 
Glottal Voice Type
This control is the converse of the Source Glottal 
Waveform control described above. We used that 
control to tell THROAT Evo the characteristic of 
the original performance. We use this control to 
tell THROAT Evo what kind of characteristic we 
would like to model. 
The choices here are the same as the choices 
for the Source Glottal Waveform control (i.e., 
soft, medium, loud, and intense). If you want 
to preserve the stylistic character of the original 
vocal, set this control to the same voice type as 
you set the Source Glottal Waveform (e.g., if you 
set Source Glottal Waveform to “soft,” set this 
control to “soft”). 
As mentioned below, this control interacts with 
the Glottal Pulse Width control. Each of the 
Voice Types sets a default Pulse Width that is 
associated with it. Once a Voice Type is set, the 
pulse width may then be adjusted separately..
NOTE: Despite the value names 
(soft, loud, etc.), this control does not 
necessarily change the actual level of 
the signal (although the “intense” setting does 
sometimes result in some level gain). Its purpose 
is to model the glottal waveform that would result 
from the various styles of singing. If you want 
to adjust the level, use the Output Gain control 
described below. 
To select vocal type, click on the Vocal Type pop-
up and then select the desired stylistic character 
from the pop-up list. 










