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Table Of Contents
Working with EXS24 mkII Filter Parameters
These parameters control the EXS24 mkII filter section. You can configure the type of
filter, filter resonance, cutoff frequency, drive, and amount of key follow. For details about
the filter envelope, see Getting to Know the EXS24 mkII Envelopes (ENV 1 and ENV 2).
Filter On/Off button: Activates or deactivates the entire filter section and the filter
envelope. Deactivating the filter section makes it easier to hear adjustments to other
sound parameters, as the filter always heavily affects the sound. Disabling the filter also
reduces processor load. If the button is green and labeled On, the filter is engaged. If
it’s gray and labeled Off, the filter is disabled.
Filter Mode/Slope buttons: Appearing as HP, LP, and BP at the bottom of the section,
these buttons determine the type, and slope, of the filter. See Choosing the EXS24 mkII
Filter Mode (HP, LP, BP).
Cutoff knob: Sets the cutoff frequency of the filter. The Cutoff value also serves as the
starting point for any modulation involving the filter. See Using EXS24 mkII Filter Cutoff
and Resonance Parameters.
Resonance knob: Boosts or cuts the frequency area surrounding the cutoff frequency.
Very high Resonance values introduce self-oscillation, causing the filter to produce a
sound—a sine wave—on its own. See Using EXS24 mkII Filter Cutoff and Resonance
Parameters.
Drive knob: Overdrives the filter input. Turning Drive up leads to a denser, more saturated
signal, which introduces additional harmonics. See Overdriving the EXS24 mkII Filter.
Key knob: Defines the amount of filter cutoff frequency modulation by note number.
When Key is set to the full-left position, the cutoff frequency is unaffected by the note
number and is identical for all played notes. When Key is set to the full-right position,
the cutoff frequency follows the note number 1:1—if you play one octave higher, the
cutoff frequency is also shifted upward by one octave. This parameter is useful for
avoiding overly filtered high notes.
182 Chapter 9 EXS24 mkII