Resonant Filter - Kurzweil FORTE SE Musician's Manual

LaserVerb
LaserVerb is a type of reverb which produces a delayed train of closely spaced reflections,
or impulses. As time passes, the spacing between the impulses gets wider, which creates a
discernible buzzy pitch that gets lower as the spacing increases. The signal can be fed back
into itself to extend the effect.
Dly Coarse is the overall delay length, which controls the duration or decay time. 0.5 sec is a
good starting point. Range is 0 to 1.3 seconds in the 2 DSP unit version of the effect, and 0
to 2 seconds in the 3 DSP unit version.
Dly Fine adjusts the delay with a resolution down to 0.2 ms. Range is -20.0 to 20.0 ms.
Spacing determines the starting pitch of the descending buzz and how fast it descends,
by setting the initial separation of impulses and the subsequent rate of increasing impulse
separation. The spacing between impulses is given in samples (20.8μs). At low values, the
buzz starts at high frequencies and drops slowly, while at high values the buzz starts at a lower
pitch and drops rapidly. Range is 0.0 to 40.0 samples, with a resolution of 0.2 sample.
Contour controls the overall shape of the reverb. When set to a high value, sounds passed
through the reverb start at a high level, and it slowly decays. As the control value is reduced,
it takes more time for the effect to build up before decaying. At a value of around 34%, the
reverb behaves like a reverse reverb, building up to a hit. When it is set to zero, the effect acts
like a simple delay. Range is 0 to 100%.
Filters

Resonant Filter

Frequency (or Freq) is the fixed resonant frequency of the filter. Its range is 16 to 8372 Hz.
Envelope Filter
Envelope Filter is a resonant filter whose center frequency can be made to vary according to
the level of the incoming signal.
There are four types of Resonant Filter effects in the Forte SE. 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 filter, 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 filter, that is, the filter frequency when
the input gain is below the triggering threshold. Its range is 16 to 8372 Hz.
The Effects Chain Editor
Effects Parameters
8-15