Kurzweil Forte SE - Resonant Filter

The Effects Chain Editor
Effects Parameters
8-15
LaserVerb
LaserVerb is a type of reverb which produces a delayed train of closely spaced reections,
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. e signal can be fed back
into itself to extend the eect.
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 eect, 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. e 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 eect 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 eect acts
like a simple delay. Range is 0 to 100%.
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 eects 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 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.