Korg KROSS Parameter Manual page 52

Program mode
11–3: KT.1(Common Keyboard Track 1)
The two Oscillators share two Common keyboard tracking
generators, in addition to each Oscillator's dedicated keyboard
tracking for the Filter and Amp. You can use these Common
keytracks as AMS sources for modulating most AMS destinations.
The Common Keyboard Track parameters are shared by the entire
Program, but the actual AMS values are calculated individually for
each voice.
What does Keyboard Tracking do?
At its most basic, keyboard tracking lets you vary the modulation
amount as you play up and down the keyboard. This can be useful
for making the timbre consistent across the entire range, or
adjusting parameters according to pitch.
The KROSS keyboard tracking can be fairly complex, if desired.
You can create different rates of change over up to four different
parts of the keyboard. For instance, you can:
• Make the modulation increase very quickly over the middle of
the keyboard, and then increase more slowly or not at all in the
higher octaves.
• Make the modulation increase as you play lower on the
keyboard.
• Create abrupt changes at certain keys, for split-like effects.
Common Keyboard Tracking
At the Center Key, the AMS value is always 0.
AMS
+99
Ramp:
+99
0
Ramp = –50
–99
–99
AMS
Low Break
For more information, please see the "6–5: KTRK (Keyboard
Track)" section on page 26.
Key
Low Break
This specifies the note that will be the break point connecting the
two sloped lines in the low region.
Center
This specifies the note that will be the break point in the center of
keyboard tracking. At this key, the keyboard tracking has no effect
on the AMS destinations.
44
Ramp = +99
Center High Break
Bottom- Low- Center- High-
Low Center High Top
Low Break Center High Break
[C–1...G9]
[C–1...G9]
High Break
This specifies the note that will be the break point connecting the
two sloped lines in the high region.
Tip: You can also set the note value by the keyboard (see page 13
of the Operation Guide).
Ramp
Positive ramp values mean that the keyboard tracking output
increases as you play farther from the Center Key; negative ramp
values mean that it decreases.
Because of this, the meanings of positive and negative Ramp
settings will change depending on whether the ramp is to the left
or right of the Center Key.
Bottom-Low and Low-Center: negative ramps make the
keyboard tracking's output go down as you play lower on the
keyboard, and positive ramps make the output go higher.
Center-High and High-Top: negative ramps make the keyboard
tracking's output go down as you play higher on the keyboard, and
positive ramps make the output go up.
Bottom-Low
This sets the slope between the bottom of the MIDI note range and
the Low Break key. For normal key track, use negative values.
Low-Center
This sets the slope between the Low Break and Center keys. For
normal key track, use negative values.
Center-High
Ramp:
This sets the slope between the Center and High Break keys. For
+99
normal key track, use positive values.
+50
00
High-Top
–50
This sets the slope between the High Break key and the top of the
–99
MIDI note range. For normal key track, use positive values.
The table below shows how the Ramps affect the AMS output:
Ramp value
–Inf goes to –99 in 1 half-step
–99 –20 per octave
–50 –10 per octave
0 no change
+50 +10 per octave
+99 +20 per octave
+Inf goes to +99 in 1 half-step
+Inf and –Inf ramps
+Inf and –Inf are special settings which create abrupt changes for
split-like effects. When a ramp is set to +Inf or
–Inf, the keyboard tracking will go to its extreme highest or lowest
value over the span of a single key.
+Inf and –Inf Ramps
Ramp = –Inf
Note: If you set the Center-High ramp to +Inf or –Inf, the High-
Top parameter will be grayed out. Similarly, if you set the Low-
[–Inf, –99...+99, +Inf]
[–Inf, –99...+99, +Inf]
[–Inf, –99...+99, +Inf]
[–Inf, –99...+99, +Inf]
AMS change
Ramp = +Inf
Ramp = –50
Key Low Center
[C–1...G9]
Key High