Vermona PERfourMER MKII - quad analog synthesizer - Manual (Page 20)

Envelope Generator (ADSR)
The envelope generator (EG) generates a control voltage that can modulate
the VCO and VCF as well as the VCA. The envelope generator is restarted by
each incoming MIDI-note. (Exception: With LEGATO enabled, overlapping
notes will not retrigger the envelope generator.)
The envelope contour is separated into four sections:
Picture 5: The Envelope Generator
ATTACK
adjusts the rising time from zero to maximum level. ATTACK starts
when a MIDI note-on-command is received (or when using the TRIG
button).
DECAY
adjusts the time from maximum level to a specific SUSTAIN level, while
the MIDI note is still active. In case the MIDI-note is shorter than the
decay-time, this phase will be aborted.
SUSTAIN
sets the envelope’s SUSTAIN level to follow attack and decay phases,
while the MIDI note is still active. With SUSTAIN set to maximum, DECAY
has no audible influence on the sound.
RELEASE
sets the time to zero level after a MIDI note-off message has been
received.
Owner's Manual VERMONA PERfourMER MKII
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