4-3: Amp1 Eg - Korg Electronic Keyboard Parameter Manual

Program mode: HD-1
4–3: Amp1 EG
4–3a
4–3b
4–3c
4–3d
These parameters let you create time-varying changes
in the volume of oscillator 1.
4–3a: 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.
Note: Once the Amp EG is in its Release segment, it
cannot be reset. (Otherwise, the sound might keep
playing forever!)
For a list of AMS sources, see "AMS (Alternate
Modulation Source) List" on page 967.
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.
78
[List of AMS Sources]
[–99...+99]
4–3b: Envelope
These parameters specify how the amp 1 EG will
change over time.
Amp EG
Start Attack Break
Level
Level Level
Volume
Time
Attack Decay
Time Time
Note-on or reset
Level
Start
This sets the initial volume 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.
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).
4–3PMC
Sustain
Level
Slope Release
Time Time
Note-off
[00...99]
[00...99]
[00...99]
[00...99]