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Korg TRITON proX Manual: Alternate Modulation Settings; The Effect Of Alternate Modulation On Various Parameters, And Example Applications

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Alternate Modulation settings

When you operate an AMS (Alternate Modulation Source),
the modulation destination will be affected as shown in the
table below.
By using alternate modulation, you can create complex sys-
tems of modulation in which EG, LFO, keyboard tracks, and
controllers work together.
• You can apply complex change to an LFO or EG, for
example by using the pitch/filter/amp EG to control
the frequency or intensity of an LFO that modulates the
pitch/filter/amp, or by using LFO2 to control the
frequency of LFO1.
• The tone, EG, and LFO etc. can be controlled not only by
velocity or joystick, but also from a switch, knob, or
pedal etc.
• Panning can be controlled in realtime from a controller,
EG, or LFO etc.
• Controllers etc. can be used to control EG levels or
times. This lets you shape the EG in realtime.
• Filter/amp keyboard tracking or note number can be
used to control the EG or LFO according to the
keyboard pitch that is played.
• Pitch, tone, EG or LFO can be controlled by the tempo of
the arpeggiator or sequencer.
Notes for the table
*1 If Note Number is selected as an AMS, the base value
will be C4.
*2 EXT(+) : Velocity, Poly After, After Touch, JS+Y:CC#01,
JS(–Y):CC#02, JS+Y & AT/2, JS –Y & AT/2,
Pedal:CC#04, Slider:CC#18, KnobMod1[+],
KnobMod2[+], KnobMod3[+], KnobMod4[+],
Damper:#64, Porta.SW:#65, Sostenuto:#66, Soft:CC#67,
SW1:CC#80, SW2:CC#81, MIDI:CC#83
*3 EXT(+–): KnobMod1:#17, KnobMod1:#19,
KnobMod1:#20, KnobMod1:#21
*4 If Tempo is selected as an AMS, the base value will be
=120. For example if the AMS for "Pitch" is set to
Tempo, and "AMS Intensity" is set to 12.00, doubling
the tempo value ( =120 → 240) will raise the pitch one
octave, and halving the tempo ( =120 → 60) will lower
the pitch one octave.
*5 A dedicated parameter is also provided.
*6 This will be added to the "Filter Cutoff Frequency"
value. As the "Frequency" value increases by 10, the cut-
off frequency will double (rise one octave).
*7 This will be added to the "Pan" setting.
*8 It is possible to control LFO "Frequency" by using
Tempo AMS and "AMS Intensity." However if you use
the "Frequency MIDI/Tempo Sync" function (Program
P5: 5–1c), the LFO frequency can be synchronized to the
tempo and note value.
The effect of alternate modulation on
various parameters, and example
Pitch (Program P2: 2–1a)
Pitch can be controlled by the filter/amp EG, controllers, or
tempo etc.
• If you select Filter EG or Amp EG as the AMS and set
"AMS Intensity" to +12.00, the pitch will change up to
±1 octave in synchronization with the EG.
• If you select Tempo as the AMS and set "AMS
Intensity" to +12.00, doubling the tempo (based on
=120) will raise the pitch one octave, and halving the
tempo will lower the pitch one octave.
Pitch EG Intensity (Program P2: 2–1b)
Pitch EG intensity can be controlled by keyboard tracking,
controllers, or tempo.
• If you select JS +Y:CC#01 as the AMS and set "AMS
Intensity" to +12.00, moving the joystick in the +Y
direction will gradually increase the effect of the Pitch
EG to a maximum of ±1 octave. If "AMS Intensity" has a
negative value, the effect of the Pitch EG will be
Pitch LFO 1/2 Intensity (Program P2: 2–1d)
Pitch modulation intensity of the LFO1/2 can be controlled
by an EG, keyboard tracking, controllers, or tempo etc.
• If you select EG as the AMS, the pitch change width of
LFO modulation etc. can be controlled in
synchronization with the level changes of the EG. With
positive (+) settings of "AMS Intensity," the vibrato
effect will gradually deepen as the EG level rises, or
gradually lessen as the EG level decreases. With
negative (–) settings of "AMS Intensity," the LFO phase
will be inverted.
• If you select a controller such as SW1 or 2 as the AMS,
you can press the [SW1] or [SW2] key when desired to
turn on the vibrato effect.
Filter (Cutoff) Frequency (Program P3: 3–2c)
The cutoff frequency of filter A/B can be controlled by the
pitch/amp EG, controllers, or tempo. Set "AMS" and "AMS
Intensity" for Filter A or B.
• If you select JS X or Ribbon:CC#16 as the AMS and set
"AMS Intensity" to a positive (+) value, moving the
joystick or ribbon controller toward the right will raise
the cutoff frequency, and moving it toward the left will
lower the cutoff frequency. Negative (–) settings will
have the opposite effect.
AMS Value →
AMS Intensity
Pitch EG Int.
Pitch LFO1/2 Int.
Filter Frequency *6
Filter EG Int.
Filter LFO1/2 Int.
Amp LFO1/2 Int.
Pan *7
EG Level
EG Time
LFO Frequency
value x(0...1...8)
value x(1/64...1...64)
value x(1...64)


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