Attack
Operation Manual
20
Waldorf
EQ Bell Type Function: Like the EQ Lo- or Hi-Shelf, this filter type has an
equalizer function. The Resonance knob serves as gain, raising or lowering the
frequency set with the Cutoff knob up to 12db.
Cutoff
11.56 Hz...18794 Hz
Controls the cutoff frequency for the low pass and high pass filter types, and the center
frequency for the band pass and notch filter types. It has a special function for the EQ
Type Filter.
When the low pass type is selected, all frequencies above the cutoff frequency are
dampened.
When the high pass type is selected, all frequencies below the cutoff frequency are
dampened.
When the band pass type is selected, only frequencies near the cutoff setting will be
passed through.
When the notch type is selected, the frequencies near the cutoff frequency are dam-
pened.
When EQ Lo- or Hi-Shelf is selected, the cutoff knob selects the start frequency of
the Shelf EQ.
When EQ Bell Type is selected, the frequencies near the cutoff frequency are
boosted or dampened with the Resonance parameter.
Resonance
0%...100%
Controls the emphasis of the frequencies around the cutoff point (exept the EQ filter ty-
pes). Use lower values to give more brilliance to the sound. At higher values the sound
acquires a typical filter character with a strong boost around the cutoff frequency.
When the setting is raised to maximum, the filter starts to self-oscillate, generating a pu-
re sine wave. This feature can be used to create typical solo sounds.
Env (Filter Envelope Amount)
-100%...100%
Determines the amount of influence the selected envelope has on cutoff frequency. For
positive settings, the filter cutoff frequency is increased by the modulation of the enve-
lope, and for negative settings, the cutoff frequency is decreased. Use this parameter to
change the timbre of the sound over time. Sounds with a hard attack usually have a po-
sitive envelope amount that makes the start phase bright and then closes the filter for a
darker sustain phase.
Vel (Filter Velocity)
-100%...100%
Determines the amount of influence the selected envelope has on the cutoff frequency,
based on key velocity. This parameter works similarly to the
Filter Env
parameter, with
the difference that its intensity is velocity based. Use this feature to give a more expres-
sive character to the sound. When you hit the keys smoothly, only minimal modulation
is applied. When you hit harder, the modulation amount also gets stronger.
The overall modulation applied to the filter’s cutoff frequency is calculated as the sum
of both the
Filter Env
and
Filter Vel
parameters. Therefore you should always bear
this total in mind, especially when the filter does not behave as you expect. You can al-
Summary of Contents for Attack
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