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Chapter 6 Filter 81
Freeze
The Freeze button holds the current analysis sound spectrum indefinitely.
The “frozen” Analysis signal can capture a particular characteristic of the source signal,
which is then imposed as a complex sustained filter shape on the Synthesis section.
Using a spoken word pattern as a source, for example, the Freeze parameter could
capture the attack or tail phase of an individual word within the pattern—the vowel a,
for example.
With Freeze engaged, the Analysis filter bank ignores the input source until it is
disengaged.
Another use of the Freeze parameter (which can be automated) could be to
compensate for people’s inability to sustain sung notes for a long period without
taking a breath. If the Synthesis signal needs to be sustained, when the Analysis source
signal (a vocal part) isn’t, Freeze can be used to lock the current formant levels (of a
sung note), even during gaps in the vocal part—between words in a vocal phrase.
Note: When the Freeze parameter is used, the Attack and Release parameters have no
effect.
Analysis In (pull-down menu)
This pull-down menu determines the Analysis signal source—Track or Side Chain. To
switch between them, use the mouse as a slider and drag vertically.
• Track—allows you to use the audio track, into which the EVOC 20 TO is inserted, as
the Analysis signal.
• Side Chain—allows you to use another audio track as the Analysis signal. The
selection of the actual Side Chain source track is achieved by click-holding on the
Side Chain pull-down menu in the gray area at the top of the Plug-in window.
Note: If no Side Chain track is assigned in the Side Chain pull-down menu, the track’s
signal will be used.
Synthesis In Parameter
Synthesis In (pull-down menu)
This pull-down menu determines the Synthesis signal source—Osc(illator), Track or Side
Chain. To switch between them, use the mouse as a slider and drag vertically.
• Oscillator—allows you to use the built-in monophonic tracking oscillator. The
oscillator tracks the pitch of the Analysis input signal. Selection of the Oscillator
activates the other parameters in the Synthesis section. If Osc is not selected, the FM
Ratio, FM Int and other parameters in this area have no effect.