Korg PS60 Parameter Manual page 61

AMS Mix/C.KeyTrk (AMS Mixer/Common Keyboard Track) OSC1 AMS Mix
Amt AxB
AMS Mixer, Type =Amt A x B
AMS A
AMS B
Amt B Amt A
This Mixer Type uses AMS B to scale the amount of AMS A.
For instance, you can control the amount of LFO1 with the
Filter EG, or control the amount of the Pitch EG with the
joystick.
AMS Mixer Amt AxB example
AMS A: LFO
AMS B: EG
Amt A*B Output
AMS A Source
This selects the first AMS source, which can then be scaled
by AMS B.
For a list of AMS sources, please see "Alternate Modulation
Source (AMS)" on page 121.
AMS A Amount
This controls the initial amount of AMS A, before modula‐
tion from AMS B. Input from AMS B then adds to this initial
amount.
Even if Amount A is set to 0, AMS B can still control the
final amount of AMS A over the full +/–99 range.
AMS B Source
This selects the second AMS source, to scale the amount of
AMS A.
For a list of AMS sources, please see "Alternate Modulation
Source (AMS)" on page 121.
AMS B Amount
This controls the depth and direction of the AMS B modula‐
tion of AMS A.
For example, if AMS A is set to LFO1 and AMS B is set to
the Filter EG, positive settings mean that the EG will
increase the amount of LFO1.
Tips: Using a foot switch to turn an AMS source
on/off
You can use Amt AxB as a gate control for an AMS source.
(Youʹll need to connect a foot switch, set Global: Controllers
"Type SW/Pedal" to Switch, and set "Foot SW Function" to
Foot Switch (CC#82) before you continue with the following
procedure.)
1. Assign "AMS A" to a desired source, and set "AMS A
Amount" to 0.
2. Assign "AMS B Source" to Foot Switch (CC#82), and set
"AMS B Amount" to +99.
Output
[List of AMS Sources]
[–99...+99]
[List of AMS Sources]
[–99...+99]
Now you can use the foot switch connected to the PS60
to turn AMS A on/off.
Offset
AMS Mixer, Type = Offset
Amt A Offset A
AMS A
This simple processor adds a constant offset to the input,
and also allows you to double the gain of an AMS source.
For instance, you can use this to convert a bipolar LFO (both
negative and positive) to a unipolar LFO (positive only). To
do this:
1. Select the LFO as the AMS A input.
2. Set the AMS A Amount to 50.
This cuts the overall level of the LFO in half, so that
instead of swinging between –99 and +99, it only swings
between –50 and +50.
3. Set the AMS A Offset to 50.
This adds 50 to the LFO level, so that it now swings
between 0 and +99, as shown below.
AMS Mixer Offset examples
AMS A: LFO
+99
0
–99
Offset = +50, Amount = 50
+99
0
–99
Offset = –99, Amount = +199
+99
0
–99
Clipped
at Output
AMS A Source
This selects the AMS source to be offset.
For a list of AMS sources, please see "Alternate Modulation
Source (AMS)" on page 121.
Offset Amount
This controls the basic level of AMS A.
+199 doubles the original signal level, while –199 doubles
the level and inverts the phase. The values are clipped only
at the output; internally, they can be greater than the normal
range of –99 to +99.
Output
[List of AMS Sources]
[–199...+199]
57