Korg KROSS Parameter Manual page 55

Offset
AMS Mixer, Type = Offset
Amt 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
This selects the AMS source to be offset.
For a list of AMS sources, please see "AMS (Alternate
Modulation Source) List" on page 292.
AMS A Amount
This controls the basic level of AMS A.
+199 doubles the original signal level, while –199 doubles the
original signal 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.
AMS A Offset
This controls the amount of offset for AMS A.
Setting Offset to +199 shifts an AMS input of –99 all the way to
+99. In conjunction with high AMS A Amount values, this can be
useful for creating clipped shapes, such as shown in the last of the
"AMS Mixer Offset examples" above.
Smoothing
This Mixer Type smooths out the AMS input, creating more gentle
transitions between values. You have separate control of the
amount of smoothing during the attack (when the signal is
increasing) and decay (when it's decreasing).
The higher the Attack and Decay settings, the more the input will
Output
be smoothed.
Low settings provide subtle controller smoothing, creating more
gradual aftertouch, for instance. Higher settings create auto-fade
effects, transforming a quick gesture into a longer fade-in and/or
fade-out event.
Smoothing can also be used to alter the shape of programmable
mod sources, such as LFOs and EGs. For instance, you can turn a
"blip" into a simple envelope shape, as shown below.
AMS Mixer Smoothing examples
AMS A
This selects the AMS source to be smoothed.
For a list of AMS sources, please see "AMS (Alternate
Modulation Source) List" on page 292.
AMS A Attack
This controls the attack time of the smoother, or how long it takes
the smoother to reach a new, higher value.
Higher Attack settings mean longer times.
Depending on how quickly the AMS input value is changing, high
Attack settings may mean that the value is never quite reached, as
shown in "AMS Mixer Shape examples" above.
AMS A Decay
This controls the decay time of the smoother, or how long it takes
the smoother to reach a new, lower value.
Higher Decay settings mean longer times.
Shape
[List of AMS Sources]
This Mixer Type adds curvature to the AMS input. This applies
deformation to the AMS input. You can use this to customize a
controller curve, such as the exponential curve of the modulation
wheel or the logarithmic curve of velocity control. It can also alter
the shape of programmable modulation sources, such as EGs and
[–199...+199]
LFOs.
Note: Shape only affects AMS signals which already have some
amount of slope, such as EGs, triangle and sine LFOs, and so on. It
does not affect signals which only contain abrupt transitions, such
as square waves.
AMS A
[–199...+199]
This selects the AMS input source to be shaped.
For a list of AMS sources, please see "AMS (Alternate
Modulation Source) List" on page 292.
12: P–AMS MIXER 12–1: 1 (AMS Mixer1)
Original AMS A:
Smoothing with Short Attack & Long Decay:
Smoothing with Long Attack
and Short Decay:
[List of AMS Sources]
[00...+99]
[00...+99]
[List of AMS Sources]
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