Korg KRONOS SGX-2 Parameter Manual page 96

Program mode: HD-1
3–4a: EG Reset
AMS (EG Reset)
This selects an AMS source to reset the EG to the start point.
For instance, you can use a tempo-synced LFO to trigger the
EG in a repeating rhythm. This reset is in addition to the
initial note-on, which always causes the EG to start.
For a list of AMS sources, see "Alternate Modulation Source
(AMS) List" on page 1109.
Threshold
This sets the AMS level which will trigger the EG reset.
Among other things, you can use this to adjust the exact
point in an LFO's phase at which the EG will be reset,
effectively controlling its "groove" against other rhythmic
effects.
When the threshold is positive, the EG triggers when
passing through the threshold moving upwards. When the
threshold is negative, the EG triggers when passing through
the threshold moving downwards.
Note: with some LFO shapes, and with faster LFO speeds,
the LFO may not always reach the extreme values of +99 or
-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.
3–4b: Envelope
Filter EG
Attack
Level
Start
Level
Change to
filter cutoff
Attack
N ote-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.
82
[List of AMS Sources]
[–99...+99]
Bre ak Sustain
Level
Level
Rele ase
Level
Decay Slope Rele ase
Time Time Time Time
N ote-off
[–99...+99]
[–99...+99]
[99...+99]
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
00
10
20
30
40
50
60
70
80
90
99
Attack
This sets how long the EG takes to move from the Start level
to the Attack level.
The minimum attack time is 2/3 of a millisecond–as fast as
the most punchy of classic analog synths.
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.
Time
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
This sets how long it takes the EG to move from the Sustain
level to the Release level.
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 KRONOS goes a step further than vintage
synths, however, and lets you control the amount of
curvature separately for each of the four envelope segments.
[–99...+99]
[–99...+99]
Actual Time
0.667 ms
10 ms
44 ms
104 ms
224 ms
464 ms
944 ms
1.8 seconds
3.8 seconds
10.9 seconds
87.3 seconds
[00...99]
[00...99]
[00...99]
[00...99]