Yamaha AR-80 - Manual (Page 123)

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2 EG RATE
The EG (Envelope Generator) settings determine how the level of the sound changes in time.
This lets you reproduce many sound characteristics of natural acoustic instruments — such
as the quick attack and decay of percussion sounds, or the long release of a sustained piano
tone.
• ATTACK
Determines how quickly the sound reaches its maximum level after the key is played. The
higher the value, the quicker the attack. Range: -50 – +50
• DECAY
Determines how quickly the sound reaches its sustain level (a slightly lower level than
maximum). The higher the value, the quicker the decay. Range: -50 – +50
• REL. (Release)
Determines how quickly the sound decays to silence after the key is released. The higher the
value, the shorter the release. Range: -50 – +50
Key-on Key-off
ATTACK DECAY RELEASE