Specifies the time from note-on
(when the key is pressed) until the
attack level (maximum value of the
envelope) is reached.
EG (Envelope Generator)
To a significant extent, each sound has its own distinctive volume curve.
For example when you play a note on a piano, the note begins at the
maximum volume, and gradually diminishes. When you release your
finger from the key, the sound will disappear quickly with a brief decay.
Volume curves such as this are an important aspect of how we identify the
sound of a specific instrument. This type of change also occurs in the tone
and pitch, as well as in the volume. On a synthesizer, this type of change is
produced by an EG. The microKORG has dedicated EGs for the filter and
for the amp. However since these EGs can be used as Virtual Patch
sources, you are also free to use them to vary the pitch or numerous other
aspects of the sound.
Some example settings are shown below.
Decay: 100 – 127
9. AMP EG
Here you can make settings for the AMP EG, which applies time-variant change to the volume ( Figure 9-1). By making AMP EG settings,
you can make the volume change as time passes. Create the desired volume curve by adjusting the ADSR parameters; ATTACK (knob 1),
DECAY (knob 2), SUSTAIN (knob 3), RELEASE (knob 4).
You can use AMP EG as a Virtual Patch source to modulate parameters other than volume. ( p.30)
Specifies the time from when the at-
Specifies the volume that will be
tack level is reached until the sus-
maintained after the decay time has
tain level (SUSTAIN) is reached.
elapsed, as long as you continue
holding the key.
Specifies the time from note-off
(when the key is released) until the
level reaches 0.
: Attack Time
: Sustain Level
: Decay Time
: Release Time
Specifies whether or not the EG will
be reset for the second and subse-
quent note-on. If a new note is
played before the previous note has
finished its release stage, the enve-
lope can either start over from zero,
or continue from the current value.
The note will start from the current
The second note-on will start from
a level of 0.
The "EG RESET" parameter is
available only when "VOICE
ASSIGN" is Poly, or when
"VOICE ASSIGN" is Mono or
Unison and "TRIGGER" is Multi.
Note on (Retrigger)