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Envelopes
Envelope nodes generate time-based control signals, typically triggered by MIDI notes or gate events.
Envelope (ADSR)
Classic Attack-Decay-Sustain-Release envelope. The most common envelope type for controlling amplitude, filter cutoff, and other parameters over time.

| Parameter | Range | Default | Description |
|---|---|---|---|
| Attack | 0.001 - 5,000 ms | 10 ms | Time to rise from zero to peak |
| Decay | 0.001 - 5,000 ms | 100 ms | Time to fall from peak to sustain level |
| Sustain | 0.0 - 1.0 | 0.7 | Level held while gate is active |
| Release | 0.001 - 5,000 ms | 300 ms | Time to fall to zero after gate off |
| Attack Curve | -1.0 - 1.0 | 0.0 | Shape of attack segment. 0 = linear, negative = logarithmic, positive = exponential |
| Decay Curve | -1.0 - 1.0 | 0.0 | Shape of decay segment |
| Release Curve | -1.0 - 1.0 | 0.0 | Shape of release segment |
Inputs: Gate (CV or event), Attack/Decay/Sustain/Release (CV), MIDI input Output: Envelope value (0.0 to 1.0) as CV
Trigger Envelope
A one-shot envelope triggered by an event. Does not sustain. Fires and completes regardless of gate. Ideal for percussion and one-shot sounds.

| Parameter | Range | Default | Description |
|---|---|---|---|
| Attack | ms | — | Rise time to peak |
| Attack Curve | -1.0 - 1.0 | 0.0 | Shape of attack |
| Release | ms | — | Fall time to zero |
| Release Curve | -1.0 - 1.0 | 0.0 | Shape of release |
Input: Trigger (event) Output: Envelope value (0.0 to 1.0) as CV
AHD Envelope
Attack-Hold-Decay envelope. Rises, holds at peak for a set time, then decays. No sustain or release stage.

| Parameter | Range | Default | Description |
|---|---|---|---|
| Attack | ms | — | Rise time to peak |
| Attack Curve | -1.0 - 1.0 | 0.0 | Shape of attack |
| Hold | ms | — | Time held at peak level |
| Decay | ms | — | Fall time to zero |
| Decay Curve | -1.0 - 1.0 | 0.0 | Shape of decay |
Multi-Envelope
A complex envelope with multiple programmable stages. Create intricate modulation shapes beyond standard ADSR. Useful for evolving pads, complex rhythmic modulations, and sound design.

TIP
Use the curve parameters to shape the character of each segment. Negative values create logarithmic curves (fast start, slow end), positive values create exponential curves (slow start, fast end), and 0 is perfectly linear.
