RAGNARÖK
Manual
Page 9
ADSR/AD switch
This switch sets the envelope to either ADSR mode (default) or AD mode.
ADSR-mode:
The envelope behaves basically as described above. When combined
with a zero sustain level you can have a different release based on how long you hold
a note. Holding a note will give you the decay time, releasing the note before the
decay time is done will go to the release time.
AD-mode:
This switches off the sustain level and gives you only the decay time.
When combined with a sustain level higher then zero, this switch let you move quickly
(performance) between a percussive or a sustained version of the sound.
The typical ADSR-envelope curve.