Envelope

ADSR envelope generator. Sample-accurate triggering inside an AudioWorklet — no main-thread latency between trigger and ramp-start.

Category: Control

Inputs

Name	Type	Description
trigger	control	One-shot. Rising edge runs attack → decay → release (sustain stage is skipped).
gate	control	Held. Rising edge starts attack/decay/sustain; falling edge starts release.
attack	control	Attack-time CV in seconds. Adds to the `attack` parameter.
decay	control	Decay-time CV in seconds. Adds to the `decay` parameter.
sustain	control	Sustain-level CV. Adds to the `sustain` parameter.
release	control	Release-time CV in seconds. Adds to the `release` parameter.

Outputs

Name	Type	Description
out	control	Envelope signal, 0–1.

Parameters

Name	Type	Default	Range	Unit	Description
curve	enum	linear	linear, exponential, cosine	—	Segment shape. Linear is straight ramps; exponential mimics analog R/C circuits; cosine has zero slope at endpoints (smoothest, fewest clicks).
attack	number	0.01	0.001–5 (log)	s	Attack time in seconds (gate-on → peak).
decay	number	0.1	0.001–5 (log)	s	Decay time in seconds (peak → sustain level).
sustain	number	0.7	0–1	—	Sustain level held while gate is high (0–1).
release	number	0.3	0.001–10 (log)	s	Release time in seconds (gate-off → 0).