Korg MICROX X50 Parameter Manual: Alternate Modulation Settings; The Effect Of Alternate Modulation On Various Parameters, And Example Applications

Music synthesizer and synthesizer/controller.
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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 (or [PITCH] wheel), but also from a
switch, knob, or pedal etc.
• Panning can be controlled in realtime from a controller,
EG, or LFO etc.
• The filter EG can also be used to control pitch or volume
at the same time as it controls the filter.
• 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.
Notes for the table on the lower right
*1 If Note No. is selected as an "AMS," the base value will
be C4.
*2 EXT(+) : Velocity, MIDI PolyAT, MIDI AfterT, Mod.
Whl#01/JS+Y #01, JS–Y #02, JS+Y&AT/2, M.Whl&AT/
2/JS –Y&AT/2, Pedal #04, Slider #18, KnobM1[+],
KnobM2[+], KnobM3[+], KnobM4[+], Damper #64,
Porta.SW #65, Soste. #66, Soft #67, SW 1 #80, SW 2 #81,
MIDI CC#83
*3 EXT(+–): KnobM1 #17, KnobM2 #19, KnobM3 #20,
KnobM4 #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 Frequency" value. As
the "Filter Frequency" value increases by 10, the cutoff
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 and "AMS Intensity." However if you use the
"Sync. (MIDI/Tempo Sync.)" function (PROG 3–1c), the
LFO frequency can be synchronized to the tempo and
note value.
154
The effect of alternate modu-
lation on various parameters,
and example applications
Pitch (PROG 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 (Pitch
AMS)" and set "Intensity (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 (Pitch AMS)" and set
"Intensity (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 (PROG 2–1b)
Pitch EG intensity can be controlled by keyboard tracking,
controllers, or tempo.
X50:
If you set "AMS" (Pitch EG AMS) to Mod.Whl#01,
and set "Intensity (AMS Intensity)" to +12.00, moving
the [MOD] wheel up will gradually increase the effect of
the Pitch EG up to a maximum of ±1 octave. Setting
"Intensity (AMS Intensity)" to a negative value will
invert the effect of the Pitch EG.
microX:
If you select JS+Y#01 as the "AMS (Pitch EG
AMS)" and set "Intensity (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 "Intensity (AMS Intensity)" has a negative
value, the effect of the Pitch EG will be inverted.
Pitch LFO1/2 Intensity (PROG 2–2a)
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 (LFO1/2 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 "Intensity (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 "Intensity (AMS Intensity)," the
LFO phase will be inverted.
X50:
If you select a controller such as SW1 or SW2 as
the "AMS (LFO 1/2 AMS)," you can press when desired
to turn on the vibrato effect.
microX:
If you set "AMS (LFO1/2 AMS)" to a
controller such as Foot SW#82, you can apply a vibrato
effect on when desired by simply stepping on a foot
switch connected to the ASSIGNABLE SWITCH jack.
AMS →
AMS Value →
Parameter
AMS Intensity
Pitch
(+12.00)
Pitch EG Int.
(+12.00)
Pitch LFO1/2 Int.
(+12.00)
Filter Frequency *6
(+99)
Resonance
(+99)
Filter EG Int.
(+99)
Filter LFO1/2 Int.
(+99)
Amp
(+99)
Amp LFO1/2 Int.
(+99)
Pan *7
(+50)
EG Level
(+66)
EG Time
(+49)
LFO Frequency
(+99)
PEG/FEG
AEG
–99...0...+99
0...+99
–1...0...+1[Octave]
0...+1[Octave]
–1...0...+1[Octave]
0...+1[Octave]
–99...0...+99
0...+99
–99...0...+99
0...+99
–99...0...+99
0...+99
value x(0...1...8)
–99...0...+99
0...+99
–63...0...+63
0...+63
value x(1/64...1...64)
value x(1...64)

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