User Manual
The Effects Chain Editor
Effects Parameters
8-18
Filters
Resonant Filter
Frequency (or Freq) is the xed resonant frequency of the lter. Its range is 16 to 8372 Hz.
Envelope Filter
Envelope Filter is a resonant lter whose center frequency can be made to vary according to
the level of the incoming signal.
ere are four types of Resonant Filter eects in the Forte. All of them have these parameters
in common:
Filter Type (or FiltType) can be Lowpass, Highpass, Bandpass, or Notch (band-cut).
Resonance is the resonance of the lter, adjustable from 0 to 50 dB.
Filter Type can be Lowpass, Highpass, Bandpass, or Notch (band-cut).
Min Freq is the minimum resonant frequency of the lter, that is, the lter frequency when
the input gain is below the triggering threshold. Its range is 16 to 8372 Hz.
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.