Module reference · Motion and modulation

ADSR

An envelope: attack, decay, sustain, release from a gate

Open in the synth with a demo patch Open Modular

What it does

ADSR is an envelope: a curve that rises and falls when an event arrives. Attack is how long the signal takes to reach its peak, Decay how long it falls to the Sustain level, where it holds for as long as the event lasts, and Release how long it fades afterwards. The envelope outputs CV, so it can open a VCA (giving you loudness) or a filter (giving you a “wah”).

Try this

Control a VCA with Envelope to give a note a sharp attack or a long fade.

Ports

gate: Gate: starts the envelope
out: Envelope CV (0 to 1)

Parameters

Attack · Decay · Sustain · Release

Try this

Clock → ADSR → VCA Gain with a Drone on the VCA input: a continuous drone becomes pulsing waves.
ADSR → filter Cutoff with a fast attack and a 0.3 s decay is the classic “plink” on every beat.
Attack 3 s and Release 6 s from a Clock at 2 bars give slow tides of volume.

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