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Chapter 6: Modulation and Envelopes
150 ANDROMEDA A6 REFERENCE MANUAL
FRERUN
The
FRERUN (“free-run”) envelope plays through its cycle even if the key or pedal is
released before reaching the Sustain stage.
Start: The envelope is started by the beginning of a Note On event.
Progress: Once the envelope has started, regardless of Note On or Sustain status,
the envelope proceeds normally through Delay, Attack, Decay 1, and
Decay 2 stages to the Sustain stage.
Sustain: If a Note On and/or a Sustain Pedal On is held when the Sustain stage
is reached, the Note On and/or the Sustain Pedal On will hold at the
Sustain level until a Note Off and a Sustain Pedal Off occurs.
The envelope will then proceed to Release 1 and continue through to
the end of the envelope.
Key Release: 1. If a Note Off event (assuming the Sustain Pedal is Off) occurs while
the envelope is in the Sustain stage, the envelope will proceed to
Release1 stage and progress normally through the envelope to
the end.
2. If a Note Off event occurs before the envelope reaches the Sustain
stage (and the Sustain Pedal is off), the envelope will proceed
through all remaining stages just as if the key was still being
pressed. The only difference in this situation is that the envelope
will pass through the Sustain stage without stopping.
FRERUN EXAMPLE
In a FRERUN envelope, the envelope
will proceed through all stages no
matter when the Note Off occurs.
A Sustain Pedal On will hold the
envelope at the
SUSTAIN level as long
as the pedal is down.
When a Sustain Pedal Off occurs, the
envelope will proceed into the
RELEASE 1 stage.
SUSREL
The
SUSREL (Sustain-Release) envelope mode merges Sustain and Release 1 stages.
Start: The envelope is started by the beginning of a Note On event.
Progress: During the Note On, the envelope proceeds normally through Delay,
Attack, Decay 1, and Decay 2 stages to the Sustain stage.
Sustain: While the envelope is “sustaining”, it will actually be transitioning
from the Sustain level to the Release 2 level – the Sustain stage is
effectively bypassed. When the Release 2 level is reached, the envelope
will hold (“sustain”) at the Release 2 level if the Note On and/or
Sustain Pedal are still On. When a Note Off or Sustain Pedal Off occur,
the envelope will then proceed to the Release 2 stage through to the
end of the envelope.
1. If the Note On is held until the Sustain level is reached, the Note On
or Sustain Pedal On will allow the envelope to transition to the
Release 2 level via the Sustain/Release 1 stage: