Korg Krome Parameter Manual page 40

Program mode
99. In this case, setting the Threshold to these values may
cause inconsistent behavior, or may mean that the EG
doesn't reset at all. If this happens, reduce the Threshold
until the EG triggers consistently.
3–5b: Envelope
Filter EG
Attack
Level
Star t
Level
Change to
Attack
Time
Note-on or reset
An envelope creates a modulation signal by moving from
one level to another over a specified time, and then moving
to another level over another period of time, and so on.
The parameters below let you set five levels, the amount of
time it takes to go from each of the levels to the next, and the
shape (from linear to curved) of each transition.
Level
Each of the five levels can be either positive or negative.
Positive levels will make the cutoff frequency (or other AMS
destination) go up from its programmed value; negative
levels will make it go down.
Start
This sets the initial EG level at note‐on.
Attack
This sets the level at the end of the Attack time.
Break
Break, short for Break Point, sets the level at the end of the
Decay time.
Sus (Sustain)
This sets the level at the end of the Slope time. Once it
reaches the Sustain level, the EG will stay there until note‐
off, unless it is reset via AMS.
Release
This sets the level at the end of the Release time.
Time
Higher values mean longer times, as shown below:
EG Value Actual Time
10 10 ms
20 44 ms
30 104 ms
40 224 ms
50 464 ms
60 944 ms
70 1.8 seconds
80 3.8 seconds
90 10.9 seconds
99 87.3 seconds
Attack
This sets how long the EG takes to move from the Start level
to the Attack level.
32
Break Sustain
Level
Level
Release
Level
Decay Slope Release
Time Time Time
[–99...+99]
[–99...+99]
[–99...+99]
[–99...+99]
[–99...+99]
[00...99]
For the fastest possible attack time, you can set the Start
level to +99; in this case, the EG will start instantaneously at
its maximum value.
Decay
This sets the time it takes to move from the Attack level to
the Break level.
Slope
This sets how long the EG takes to move from the Break
level to the Sustain level. Once it reaches the Sustain level,
the EG will stay there until note‐off (unless it is reset via
AMS).
Release
Time
This sets how long it takes the EG to move from the Sustain
level to the Release level.
Note: You can touch and drag to change this value
(See "* EG, Velocity Split" on page 6 of the Operation
guide.).
Curve
For the sake of simplicity, most of the diagrams in this
manual show envelopes as being made out of straight lines.
In actuality, though, envelopes are more likely to be made
out of curves.
In other words, each segment's level will change quickly at
first, and then slow down as it approaches the next point.
This tends to sound better than straight, linear segments.
Classic analog synth envelopes made these curved shapes
naturally. The KROME goes a step further than vintage
synths, however, and lets you control the amount of
curvature separately for each of the four envelope segments.
Filter EG Curve
Curve=0L (Linear)
When you change the curvature, the EG times remain the
same. However, greater curvature will tend to sound faster,
because the value changes more quickly at the beginning.
Different curve settings for up and down
You may find that different amounts of curvature are
suitable for segments which go up and segments which go
down.
For instance, a curve of 3 is a good default setting for
upward segments, such as Attack. On the other hand, a
curve of 6 or more is good for downward segments, such as
Decay and Release.
Attack
This sets the curvature of the Attack segment ‐ the transition
from the Start level to the Attack level.
Decay
This sets the curvature of the Decay segment ‐ the transition
from the Attack level to the Break level.
Curve=0L (Linear)
Curve=10E (Exp/Log)
Curve=10E (Exp/Log)
[0L (Linear), 1...9, 10E (Exp/Log)]
[0L (Linear), 1...9, 10E (Exp/Log)]
[00...99]
[00...99]
[00...99]