Korg R3 Electronic Keyboard User Manual


 
3
Envelope generators (EG1/EG2/EG3)
Envelope generators (EG) are used to apply time-varying change to the
sound parameters. Each EG consists of four parameters: attack time
(ATTACK), decay time (DECAY), sustain level (SUSTAIN), and release
time (RELEASE). Each timbre contains three of these EGs. EG1 is assigned
to control the filter cutoff frequency, and EG2 is assigned to control the
volume of the amp. You can also use virtual patching (VIRTUAL PATCH)
to assign these EGs as envelope sources for other parameters.
LFO section (LFO1/LFO2)
LFO (Low Frequency Oscillator) is used to apply cyclic change to the sound
parameters. Each timbre contains two LFOs, and for each LFO you can
choose one of five waveforms. By default, LFO1 is assigned to oscillator 1’s
analog algorithms as the knob labelled “OSCCtr2”, and LFO2 is assigned to
the modulation wheel. You can also make virtual patch settings (VIRTUAL
PATCH) to assign the LFOs as modulation sources for other parameters.
Virtual Patch (VIRTUAL PATCH)
The virtual patch section lets you freely assign modulation sources to
modulate-able parameters, giving you even more flexibility for creating
sounds. You can make six virtual patch assignments in each timbre.
Modulation Sequencer (MOD SEQUENCER)
Using a modulation sequencer, you can apply up to sixteen discrete
values (steps) to a modulate-able parameter over time, in a manner
similar to vintage analog synthesizers. The modulation sequence can
play once, repeat, loop front to back, etc. - providing movement and
complexity to the sound. The value can change abruptly at each step, or
it can smoothly transition from value to value. The value of each step can
be set using the front panel knobs, or by using the Motion Rec function to
record knob movements (changes in parameter values) in realtime.
Equalizer (EQ) and Insert Effects (INSERT FX1/FX2)
Each timbre is equipped with a two-band Equalizer to further control the
overall tone. In addition, each timbre also possesses two insert effects.
Thirty different effect types are available, and their 128 editable effect
program locations to save your favorites. Certain effects can by synced to
the tempo of the internal clock that is running the arpeggiator, or to an
external MIDI clock. BPM Sync effects can be conveniently set as note
values (Half-note, quarter-note, etc.).
Master effect (MFX)
Each program contains one master effect. You can use this to apply a
reverb or delay effect to the overall combined sound of the program
including the processing applied by the insert effects of each timbre,
adding the final touch to the complete program. You can choose from
thirty different effect types, and 128 editable effect programs.
Arpeggiator
You can apply the arpeggiator to a timbre. If the program uses two
timbres, you can apply the arpeggiator to either or both timbres. This is a
step arpeggiator with six types of arpeggios.
The structure of a program