Envelope

ADSR envelope on MIDI

When to use it

Place Envelope when a CC, pitch bend, or other MIDI destination should follow an ADSR shape triggered by notes or a fixed key.

Parameters

Parameter	Range	What it does
Bypass	0 – 1	When on, the device is disabled and MIDI passes through unchanged.
Trigger	0	What starts the envelope: mono, keyed, polyphonic, or looping.
Key Note	0 – 127	MIDI note that retriggers the envelope in Key mode.
Attack	0 – 768	Time to reach peak level after trigger (0–768 ms).
Hold	0 – 768	Time peak is held before decay (0–768 ms).
Decay	0 – 768	Time to fall from peak to sustain (0–768 ms).
Sustain	0 – 100	Held level while the note is down (0–100%).
Release	0 – 768	Time to fade after note off (0–768 ms).
Depth	-100 – 100	Modulation amount applied to the destination (−100 to +100%).
Offset	0 – 100	Baseline level before the envelope shape (0–100%).
Dest	0	MIDI message type the envelope drives (CC, NRPN, pitch bend, etc.).
Dest MSB	0 – 127	High byte of the destination address (NRPN/RPN/CC MSB).
Dest LSB	0 – 127	Low byte of the destination address (NRPN/RPN/CC number).

Parameter values

Bypass

Value	Name	Meaning
0	Off	Device is active and processes MIDI.
1	On	Device is bypassed; messages pass through unchanged.

Trigger

Value	Name	Meaning
0	Mono	Single envelope retriggers on any note.
1	Key	Retrigger only from Trigger Key.
2	Poly	Independent envelope per held note.
3	Loop	Retrigger continuously while held.

Dest

Value	Name	Meaning
0	CC	Drive a single control change.
1	CC Pair	14-bit CC (MSB + LSB).
2	NRPN	Non-registered parameter number.
3	Pitch Bend	Channel pitch wheel.
4	Channel Pressure	Aftertouch (channel).
5	Program Change	Patch change messages.
6	Poly Aftertouch	Per-note pressure.