Korg M50-88 Parameter Manual page 64

Program mode
Gate Control:
Source
This selects the AMS source to control the gate.
Control At Note-On Only
When this is enabled (checked), the value of the Control
Source at note-on will select the output (Below Threshold
or At & Above Threshold). The selected output will then
remain active throughout the duration of the note,
regardless of any subsequent change in the Control Source's
value.
Note that the output value itself can continue to change;
only the selection of Below or At & Above is fixed.
Threshold
This sets the value of the Control Source at which the gate
opens or closes.
Gate Output:
If the value of the Control Source is less than the Threshold,
the Gate outputs the preset value or AMS source selected
under Below Threshold.
If the value of the Control Source is greater than or equal to
the Threshold, the Gate outputs the preset value or AMS
source selected in the At & Above Threshold parameter.
Below Threshold
This selects whether Below Threshold uses a preset value,
or the selected AMS source.
Fixed Value
This lets you set a specific value to be used when the
Control Source is less than the Threshold. This only applies
when Below Threshold is set to Fixed Value.
AMS A
This lets you set an AMS source to pass through the Gate
when the Control Source is less than the Threshold. This
only applies when Below Threshold is set to AMS A.
At & Above Thresh (At & Above Threshold)
This selects whether At & Above Threshold uses a preset
value, or the selected AMS source.
Fixed Value
This lets you set a specific value to be used when the
Control Source is greater than or equal to the Threshold.
This only applies when At & Above Threshold is set to
Fixed Value.
AMS B
This lets you set an AMS source to pass through the Gate
when the Control Source is greater than or equal to the
Threshold. This only applies when At & Above Threshold
is set to AMS B.
Tips on using the Gate
Selective pitch-bend, using a switch
You can use Control At Note-On Only to apply an effect to
some notes, but not others, based on the state of an AMS
source at the start of the note. For instance:
1. Set the Control Source to Foot SW: CC#82
2. Set Control At Note-On Only to On (checked).
3. Set the Threshold to 50.
4. Set Below Threshold to a Fixed Value of +00.
5. Set At & Above Threshold to AMS B: JS X.
56
[List of AMS Sources]
[Off, On]
[–99...+99]
[Fixed Value, AMS A]
[–99...+99]
[List of AMS Sources]
[Fixed Value, AMS B]
[–99...+99]
[List of AMS Sources]
6. On the OSC Pitch page, assign the AMS Mixer to con-
trol the pitch.
7. Turn off the foot switch, and while holding down a
chord, move the joystick in the X-direction. The pitch
will not change.
(If the pitch changes, go to the OSC Pitch page and set Pitch
"JS (+X) and "JS (–X)" to +00.)
8. Turn on the foot switch, and add a new note to the pre-
vious chord.
9. Move the joystick in the X-direction; pitch bend will be
applied only to the newly-played note.
The new note will bend, but the original chord (played
before you pressed on the foot-switch) will not.
Selective pitch-bend, using only the joystick
You can also use a single AMS source as both the Control
Source and a value source:
1. Set the Control Source to JS X.
2. Set Control At Note-On Only to On (checked).
3. Set the Threshold to 00.
4. Set Below Threshold to AMS A: JS X.
5. Set At & Above Threshold to a Fixed Value of 00.
6. On the OSC Pitch page, assign the AMS Mixer to con-
trol the pitch.
7. With the joystick in the center, play a chord, and hold it
through step 9.
8. Bend the joystick to the left, and then play a new note
above the chord.
(If the pitch changes, go to the OSC Pitch page and set Pitch
"JS (+X) and "JS (–X)" to +00.)
9. Use the joystick to bend the pitch of the new note.
The new note will bend, but the original chord (played
before you bent the joystick down) will not. This method is
particularly good for bending the top note of a chord up to
pitch.
Generating a static value
Sometimes, it can be handy to have a preset value as an
AMS source. The Gate is one way to create this. To do so:
1. Set both Below Threshold and At & Above Threshold
to Fixed Value, and enter the same value into each.
Now, the AMS mixer will always generate this static value.
▼6–1: Menu Command
• 0: Write Program ☞p.73
• 1: Exclusive Solo ☞p.73
• 2: Copy Oscillator ☞p.74
• 3: Swap Oscillator ☞p.74
For more information, please see "Program: Menu
Command" on page 73.