Korg M50-88 Parameter Manual page 46

Program mode
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).
Rel (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 M50 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.
Slope
This sets the curvature of the Slope segment - the transition
from the Break level to the Sustain level.
Rel (Release)
This sets the curvature of the Release segment - the
transition from the Sustain level to the Release level.
38
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)]
[0L (Linear), 1...9, 10E (Exp/Log)]
[0L (Linear), 1...9, 10E (Exp/Log)]
[00...99]
3–1–5c: EG Level/Time Modulation
Level
[00...99]
These settings let you use any AMS source to control the
Level parameters of the EG. The Start, Attack, and Break
levels share a single AMS source, but can each have different
modulation intensities.
By using different settings for each of the three levels, you
can cause both subtle and dramatic changes to the EG shape,
[00...99]
as shown below.
Once an EG segment begins, it can't be modulated
Once the EG has started a segment between two points, that
segment can no longer be modulated. This includes both the
time of the segment, and the level reached at the end of the
segment.
For instance, if the EG is in the middle of the Decay time,
you can no longer modulate either the Decay time or the
Break level.
As another example, let's say that you've assigned the
Common LFO to modulate Break Level. The LFO may be
moving all the time, but the Break Level is only affected by
the LFO's value at the instant that the Decay segment starts.
After that, the level is fixed.
Finally, this also means that modulating the Start level,
Attack level, or Attack time will not affect notes that are
already sounding, unless the EG is then reset via AMS.
Filter EG Level Modulation
Original Shape
Negative AMS on Start,
Attack, and Break
AMS
Selects an AMS source to control the EG's Level parameters.
For a list of AMS sources, please see "AMS (Alternate
Modulation Source) List" on page 374.
St (Start)
This controls the depth and direction of the AMS
modulation for the Start level.
For example, if you set the AMS source to Velocity and set
St (Start) to +99, the Start level will increase as you play
harder. If you instead set St (Start) to –99, the Start level will
decrease as you play harder.
At (Attack)
This controls the depth and direction of the AMS
modulation for the Attack level.
Br (Break)
This controls the depth and direction of the AMS
modulation for the Break level.
Positive AMS on Start,
Attack, and Break
Positive AMS on Start and Break,
Negative AMS on Attack
[List of AMS Sources]
[–99...+99]
[–99...+99]
[–99...+99]