Kurzweil Forte SE - Page 181

The Effects Chain Editor
Effects Parameters
8-16
Sweep determines how far the resonant frequency moves when the input level increases.
At positive levels it moves up in pitch, and at negative levels it moves down. e highest
possible resonant frequency is 8372 Hz, the lowest is 0 Hz. is parameter’s range is -100%
to +100%.
Resonance is the resonance of the lter, adjustable from 0 to 50 dB.
Atk Rate adjusts the upward slew of the attack portion of the envelope detector. Range is 0
to 300.0 dB/sec.
Rel Rate adjusts the downward slew of the release portion. Range is 0 to 300.0 dB/sec.
Smooth Rate slows down the envelope follower. If it is set to a lower rate than Atk Rate or
Rel Rate, it can dominate those parameters. Range is 0 to 300.0 dB/sec.
Triggered Filter
e Triggered Filter is a sweeping resonant lter that triggers when a certain input threshold
is reached, and then follows its own envelope, consisting of an instantaneous attack and an
exponential release, rather than the envelope of the input signal.
Max Freq is the resonant frequency of the lter at the peak of the internal envelope. It can
be set lower than Min Freq (above), in which case the lter will sweep downwards, then back
up. Range is 16 to 8372 Hz.
Trigger is the input-signal threshold at which the envelope detector triggers. Range is -79 to
0 dB.
Retrigger is the input-signal threshold at which the envelope detector resets, so that it can
trigger again. is parameter is only useful when it is set below the value of Trigger. Range is
from -79 to 0 dB.
Env Rate is the envelope detector decay rate. is can be used to prevent false triggering.
When the signal envelope falls below the retrigger level, the lter can be triggered again
when the signal rises above the trigger level. Since the input signal can uctuate rapidly, it
is necessary to adjust the rate at which the signal envelope can fall to the retrigger level. e
range is 0 to 300.0 dB/sec.
Rel Rate is the downward slew (release) rate of the triggered envelope generator. e range is
0 to 300.0 dB/sec.
Smth Rate slows down the envelope follower. If set lower than the release rate, it will
dominate it. You can also use the smoothing rate to lengthen the attack of the internal
envelope. e range is 0 to 300.0 dB/sec.
LFO Filter
e LFO lter is continuously swept between two resonant frequencies over a period of time.
e LFO frequency, expressed in BPM and beats, can be xed or set to follow System tempo.