Korg MICRO manual Amp Eg Synth/Vocoder, Attack, Sustain, EG Reset

9.AMP EG — SYNTH/VOCODER

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)

ATTACK [0...127] DECAY [0...127]

SUSTAIN [0...127] RELEASE [0...127]

EG RESET [OFF, ON]

Specifies the time from note-on	Specifies the time from when the at-
(when the key is pressed) until the	tack level is reached until the sus-
attack level (maximum value of the	tain level (SUSTAIN) is reached.
envelope) is reached.

EG (Envelope Generator)

Specifies the volume that will be maintained after the decay time has elapsed, as long as you continue holding the key.

Figure 9-1

Specifies the time from note-off (when the key is released) until the level reaches 0.

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.

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

Level

Attack Level

0

Note on

[3]

Note off

Time

OFF ():

The note will start from the current EG level.

ON ():

The second note-on will start from a level of 0.

Note on Note off Note on (Retrigger)

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.

Piano				Organ
Level				Level
	Note on	Note off			Note on	Note off
0			Time	0			Time
	Attack: 0	Sustain: 0			Attack: 0	Sustain: 127
	Decay: 100 – 127	Release: 5–25			Decay: —	Release: 0

			[1]	[2]	[4]
		[1]: Attack Time			[3]: Sustain Level
		[2]: Decay Time			[4]: Release Time
Strings
Level
	Note on			Note off
0						Time
	Attack: 40		Sustain: 75
	Decay: 50		Release: 50

OFF

ON

The "EG RESET" parameter is available only when "VOICE ASSIGN" is Poly, or when "VOICE ASSIGN" is Mono or Unison and "TRIGGER" is Multi.

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