Korg Electronic Keyboard Parameter Manual page 789

FILTER
Manual
Sets the filter's center frequency, before LFO
modulation.
Depth
The LFO modulates the filter's frequency; this sets the
intensity of the LFO modulation.
Source
Selects a source to modulate the LFO Depth.
Amount
Sets the intensity of the Depth modulation.
Resonance
Resonance emphasizes the audio around the filter's
center frequency.
At 0, there is no emphasis, and frequencies outside the
center will simply diminish smoothly.
At medium settings, the resonance will alter the timbre
of the filter, making it sound more nasal or extreme.
At very high settings, the resonance can be heard as a
separate, whistling pitch. At 100, the filter will self-
oscillate (after being fed an initial burst of input).
LFO
Waveform and Phase
Waveform
Step-Tri creates a steppy triangle waveform (see the
diagram below). The LFO Frequency parameter sets
the original triangle waveform speed, and the LFO
Step Freq parameter adjusts the width of the steps.
Random produces a sample-and-hold waveform, with
the speed controlled by the Step Freq.
LFO Frequency
Step Frequency
Step-Tri
Phase [degrees]
This sets the LFO phase difference between the left and
right, in steps of 10 degrees. Offsetting the left and
right phases alters how modulation is applied to the
left and right channels, creating a swelling effect.
[0...100]
[0...100]
[Off...Tempo]
[+/–100]
[0...100]
[Step-Tri, Random]
Random Filter LFO
Step Frequency
Random
[–18...+18]
EQ and Filters
0 +90 +180 [degree]
—180 —90 0 [degree]
Frequency
These parameters apply when MIDI/Tempo Sync is
Off (un-checked).
Frequency [Hz]
This sets the speed of the triangle waveform, in Hz.
Step Frequency [Hz]
This sets the speed of the steps, in Hz.
Source
This selects a modulation source for both the
Frequency and the Step Frequency. You can set the
modulation amounts individually, below.
Amount
Sets the Frequency modulation amount, in Hz.
Step Amount
Sets the Step Frequency modulation amount, in Hz.
MIDI/Tempo Sync
MIDI/Tempo Sync
When this is on, the LFO speed is set by BPM, Base
Note, and Times, instead of Frequency. For more
information, see "MIDI/Tempo Sync" on page 777.
BPM
MIDI syncs to the system tempo. 40-240 sets the tempo
manually for this individual effect.
Base Note
Times
These set triangle waveform's base note and multiplier.
For more information, see "MIDI/Tempo Sync" on
page 777.
Step Note
Times
These set the step's base note and multiplier. For more
information, see "MIDI/Tempo Sync" on page 777.
Step LFO type
Type (Step) [Individual, Common1, Common2]
This controls the LFO source for the steps. It does not
affect the triangle LFO.
Individual: the steps use the Frequency and
MIDI/Tempo Sync parameters, above.
018: Stereo Random Filter
LFO Phase
[0.02...20.00]
[0.05...50.00]
[Off...Tempo]
[–20.00...+20.00]
[–50.00...+50.00]
[Check-box]
[MIDI, 40.00...240.00]
[ ... ]
[x1...x32]
[ ... ]
[x1...x32]
779