KORG Electronic Keyboard - Manual (Page 791)

EQ and Filters 020: Stereo Sub Oscillator
781
Amount [–20.00…+20.00]
This sets the Frequency modulation amount, in Hz.
MIDI/Tempo Sync [Check-box]
BPM [MIDI, 40.00…240.00]
Base Note [ … ]
Times [x1…x32]
When MIDI/Tempo Sync 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.
Type [Individual, Common1, Common2]
This controls whether the effect uses its individual
LFO, or one of the Common FX LFOs. For more
information, see “LFO Type” on page 777.
Common LFO Phase Offset [degrees] [+/–180]
When Type is set to Common FX LFO 1 or 2, this lets
you offset the phase from the master LFO.
OUTPUT
This is the standard effects output section, with
modulatable control over wet/dry balance. For more
information, see “OUTPUT” on page 764.
020: Stereo Sub Oscillator
This effect adds very low frequencies to the input
signal. It’s useful for creating powerful sub-bass
effects, such as deep, rumbling drum sounds. You can
also adjust the oscillator frequency to follow incoming
MIDI notes, for use as an octaver.
ENVELOPE
Pre LPF [1…100]
This parameter sets the upper limit of the frequency
range to which very low harmonics are added. Adjust
this parameter if you do not want to add lower
harmonics to the higher range.
Sensitivity [0…100]
Sets the sensitivity with which very low harmonics are
added.
Shape [+/–100]
Sets the oscillator’s volume envelope curve.
SUB OSCILLATOR
OSC Mode [Note (Key Follow), Fixed]
This determines whether the oscillator frequency
follows the note number, or stays at a fixed value.
Note (Key Follow): The oscillator’s frequency is based
on MIDI note number (on the effect’s MIDI channel),
allowing you to use it as an octaver. The Note Interval
parameter, below, sets the pitch offset from the original
note, in semitones.
Fixed: the oscillator uses the manually-set Fixed
Frequency, below.
Note Interval [–48…0]
This sets a pitch offset from the received MIDI note
number, in semitones. It applies only when OSC Mode
is set to Note (Key Follow).
Note Fine [+/–100]
This adjusts the frequency in cents (1/100 of a
semitone). It applies only when OSC Mode is set to
Note (Key Follow).
Fixed Frequency [Hz] [10.0…80.0]
Sets the oscillator frequency when OSC Mode is set to
Fixed.
Source [Off…Tempo]
Selects the modulation source for the oscillator
frequency when OSC Mode is set to Fixed.
Amount [–80…+80]
Sets the oscillator frequency modulation amount when
OSC Mode is set to Fixed.
OUTPUT
This is the standard effects output section, with
modulatable control over wet/dry balance. For more
information, see “OUTPUT” on page 764.
Wet / Dry
Note No.
OSC Mode
Fixed
Note (Key Follow)
Sine Oscillator
Fixed Frequency
Pitch
Note Interval, Fine
Stereo In - Stereo Out
Left
Right
Wet / Dry
Envelope Sens
Envelope Shape
Envelope Shape
D -mod
Pre LPF
Envelope Sens Pre LPF