Prog 5.3: Ed-Lfos; 1: Os1Lfo1 (Osc1 Lfo1) - Korg Triton-Rack Parameter Manual

PROG 5.3: Ed–LFOs
Here you can make settings for the LFO that can be used to
cyclically modulate the Pitch, Filter, and Amp of oscillators 1
and 2. There are two LFO units for each oscillator. By setting
the LFO1 or LFO2 Intensity to a negative (–) value for Pitch,
Filter, or Amp, you can invert the LFO waveform.
5.3–1: OS1LFO1
(OSC1 LFO1)
Indicates settings for the "OSC1 LFO1," which is the first
LFO that can be used for oscillator 1.
5.3–1a
5.3–1b
5.3–1c
5.3–1a: OSC1 LFO1
Waveform [Triangle 0...Random6 (Vect.)]
Selects the LFO waveform.
The numbers that appear at the right of some of the LFO
waveforms indicate the phase at which the waveform will
begin.
Triangle 0 Step Triangle – 4
Triangle 90 Step Triangle – 6
Triangle wave
Phase will change
Triangle
Step Saw – 4
randomly at each key-in
Random
Saw 0 Step Saw – 6
Sawtooth down ↓
Random1 (S/H):
Saw 180
Conventional sample & hold (S/H) in which the
level changes randomly at fixed intervals of
Square
Square wave
time
Random2 (S/H):
Sine Both the levels and the time intervals will
Sine wave
change randomly.
Random3 (S/H):
Guitar vibrato
Guitar
The maximum level and minimum level will
alternate at random intervals of time (i.e., a
square wave with random period).
Exp.Triangle
Random4 (Vect.)
Exp.Saw Down
Random5 (Vect.)
Random6 (Vect.)
These types cause Random 1–3 to change
Exp.Saw Up
smoothly. They can be used to simulate the
instability of acoustic instruments etc.
Frequency
Sets the LFO frequency. A setting of 99 is the fastest.
Ofs (Offset)
Specifies the central value of the LFO waveform.
For example, with a setting of 0 as shown in the following
diagram, the vibrato that is applied will be centered on the
note-on pitch. With a setting of +99, the vibrato will only
raise the pitch above the note-on pitch, in the way in which
vibrato is applied on a guitar.
When "Waveform" is set to Guitar, the modulation will
occur only in the positive (+) direction even if you set "Off-
set" to 0.
Offset settings and pitch change produced by vibrato
Pitch offset = –99
Pitch at note-on
5.3–1d
[00...99]
[–99...+99]
offset = 0 offset = +99
Key Sync.
On (Checked): Key Sync. will be On. The LFO will start each
time you play a note, and an independent LFO will operate
for each note.
Off (Unchecked): Key Sync. will be Off, and the LFO effect
that was started by the first-played note will continue to be
applied to each newly-played note. (In this case, Delay and
Fade will be applied only to the LFO when it is first started.)
Fade
Specifies the time from when the LFO begins to apply until
it reaches the maximum amplitude. When "Key Sync." is
Off, the fade will apply only when the LFO is first started.
How "Fade" affects the LFO (when "Key Sync." is On)
Note-on
Fade
Delay
Dly (Delay)
Specifies the time from note-on until the LFO effect begins to
apply.
When "Key Sync." is Off, the delay will apply only when
the LFO is first started.
5.3–1b: Freq.Mod (Frequency Modulation)
You can use two alternate modulation sources to adjust the
speed of the OSC1 LFO1.
AMS1 (Freq. AMS1)
[Off, (PEG, FEG, AEG, LFO2, KT, EXT)]
Selects the source that will adjust the frequency of the oscil-
lator 1 LFO1 ( p.206 "AMS List"). OSC1 LFO1 can be mod-
ulated by OSC1 LFO2.
Int (AMS1 Intensity)
Specifies the depth and direction of the effect that "AMS1
(Freq. AMS1)" will have.
When this parameter is set to a value of 16, 33, 49, 66, 82, or
99, the LFO frequency being can be increased by a maxi-
mum of 2, 4, 8, 16, 32, or 64 times respectively (or decreased
by 1/2, 1/4, 1/8, 1/16, 1/32, or 1/64 respectively).
For example, if "AMS1 (Freq. AMS1)" is Note No., positive
(+) values of this parameter will cause the oscillator 1 LFO
to speed up as you play higher notes. Negative (–) values
will cause the oscillator 1 LFO to slow down as you play
higher notes. This change will be centered on the C4 note.
If "AMS1 (Freq. AMS1)" is JS+Y #01, higher values of this
setting will cause the OSC1 LFO speed to become corre-
sponding faster when a joystick is operated on a TRITON
etc. connected to MIDI IN. With a setting of +99, moving the
joystick all the way away from yourself will increase the
LFO speed by approximately 64 times.
AMS2 (Freq. AMS2)
[Off, (PEG, FEG, AEG, LFO2, KT, EXT)]
Int (AMS2 Intensity)
Indicates settings for a second alternate modulation source
that will adjust the frequency of the oscillator 1 LFO1.
"AMS1 (Freq. AMS1)," "Int. (AMS1 Intensity)"
[Off, On]
[00...99]
Note-off
[0...99]
[–99...+99]
[–99...+99]
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