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Edit Sound 16•23
Filter
Edit Sound - Main menu - Filter Editor selected Edit Sound - Filter Control parameters
Valid for all Algorithms. For the Dual 1 and Dual
3 algorithms, two Filters are connected in paral-
lel [Filter os. 1, Filter os. 2]. For the Dual 2 and
Dual 4 Algorithms, the Filters are connected in
series [Filter 1, Filter 2].
Filters enhance or attenuate certain frequencies
of the Waveforms. The sound changes accord-
ing to the type of filter selected. The SK760/880
filters are 2 pole filters with roll off curves at 12
dB per octave.
In the Dual 1 and Dual 3 Algorithms, the Filters
are connected in parallel, so that Filter 1 oper-
ates on oscillator 1 and Filter 2 on oscillator 2.
In the Dual 2 and Dual 4 Algorithms, the Filters
are connected in series, so that Filter 2 operates
on the sound already processed by Filter 1. If
both filters are programmed with identical param-
eter values, they become a single 4 pole filter
with a roll off curve of 24 dB per octave, perfect
for those classic analog synth sounds.
Some additional information on “Filters” appears
on page 39 of this chapter.
Filter Control parameters
Type Selects the Filter type.
“Off” deactivates the filter.
Assignable values: Off, Low Pass,
High Pass, Band Pass, Parametric
boost, Parametric cut.
Cutoff Sets a value for the Cutoff
Frequency Frequency, or the frequency at which
the filter intervenes. The Cutoff Fre-
quency is the same for all the notes
of a Sound, unless you programme
Filter Tracking.
Assignable values: 0 ... 191.
Resonance Applies resonance to the Cutoff fre-
quency, creating a peak of empha-
sis at the Cutoff frequency. A high
value of resonance can place the fil-
ter on “auto-oscillation”, producing a
whistling sound rich in harmonics.
Assignable Values: 0 ... 127.
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