3-3: Filter1 Modulation - Korg Krome Parameter Manual

Btm Lo (Bottom-Low)
This sets the slope between the bottom of the MIDI note
range and the Key Low key. For normal key track, use
negative values.
Lo Cent (Low-Center)
This sets the slope between the Key Low and Center keys.
For normal key track, use negative values.
Cent Hi (Center-High)
This sets the slope between the Center and Key High keys.
For normal key track, use positive values.
Hi Top (High-Top)
This sets the slope between the Key High key and the top of
the MIDI note range. For normal key track, use positive
values.
+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
Ramp = –50
Ramp = –Inf
Key Low Center
Note: if you set the Cent Hi ramp to +Inf or –Inf, the Hi Top
parameter will be grayed out. Similarly, if you set the Lo
Cent ramp to +Inf or –Inf, the Btm Lo ramp will be grayed
out.
Key Follow
To create the classic Key Follow effect, in which the filter
frequency tracks the pitch of the keyboard:
1. Set the Filter Frequency to 30.
2. Set the Keyboard Track Intensity to +99.
3. Set the Btm Lo and Lo Cent ramps to –50.
4. Set the Cent Hi and Hi Top ramps to +50.
5. Set the Center Key to C4.
The settings for the Key Low and Key High keys don't
matter in this case.
Filter Keyboard Track is also an AMS source
You can use the filter keyboard tracking as an AMS source to
modulate other parameters, just like the envelopes and
LFOs. Simply select Filter KTrk in the AMS list for the
desired parameter.
3–2: Menu Command
V
• 0: Write Program see p. 64
• 1: Exclusive Solo see p. 64
• 2: Auto Song Setup see p. 65
• 3: Copy Oscillator see p. 65
• 4: Swap Oscillator see p. 65
[–Inf, –99...+99, +Inf]
[–Inf, –99...+99, +Inf]
[–Inf, –99...+99, +Inf]
[–Inf, –99...+99, +Inf]
Key High
PROG P3: Filter 3–3: Filter1 Modulation
For more information, please see "Program: Menu
Command" on page 64.
3–3: Filter1 Modulation
This page contains the settings for Oscillator 1's filter
modulation. Among other things, you can:
• Control the effect of the Filter Envelope on filter cutoff.
• Assign AMS modulation for filter cutoff.
Filter B is available when the Filter Routing is set to Serial
or Parallel. Otherwise, the parameters for Filter B will be
grayed out.
3–3a
3–3b
3–3a: Filter EG
The Filter EG modulates the Filter A and B cutoff
frequencies over time. You can control how strongly the EG
will affect the filters in three different ways:
• Set an initial amount of EG modulation, using the
Intensity to A and B parameters.
• Use velocity to scale the amount of the EG applied to the
filter.
• Use any AMS source to scale the amount of the EG
applied to the filter.
You can use all three of these at once, and the results are
added together to produce the total EG effect.
To set up the EG itself, including attack and release times,
levels, and so on, please see "3–5: Filter1 EG" on page 31.
Velocity to A
This lets you use velocity to scale the amount of the Filter EG
applied to Filter A.
Velocity control of Filter EG
In all examples below, Intensity to A = +50
A. Original EG
Original
C. Velocity to A = –25
Original
With positive (+) values, playing more strongly will
increase the effect of the Filter EG, as shown in example B
above.
With negative (–) values, playing more strongly will
introduce the opposite effect of the Filter EG–like inverting
the polarity of the envelope. You can use this in several
different ways:
3–3
Menu
[–99...+99]
B. Velocity to A = +50
D. Velocity to A = –99
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