grp/envelope-follower
P12 Envelope Follower
Analog envelope follower that extracts a CV envelope and a gate signal from an audio input, with selectable Line/Mic input level and a pre-amplified audio thru output.1032
Capabilities 1
- Envelope Followerenvelope-follower
- Tracks audio amplitude to produce a CV envelope at ENV OUT and a gate signal at GATE OUT, with adjustable threshold and bipolar output level control.1032
Jacks 4 (1 in / 3 out)
| Name | Signal | Voltage | Description |
|---|---|---|---|
| Inputs (1) | |||
| INPUT | audio | — | 1032 |
| Outputs (3) | |||
| ENV OUT | cv | — | CV output carrying the envelope that tracks the amplitude of the audio input signal.1032 |
| GATE OUT | gate | — | Outputs a gate signal that goes high when the audio amplitude exceeds the threshold set by THRESH.1032 |
| PRE OUT | audio | — | Pre-amplified audio output taken after the INPUT level control stage.1032 |
Parameters 4
| Name | Type | Range | Behavior |
|---|---|---|---|
| ENV OUT | knob | — | Attenuverter that applies a bipolar gain to the CV signal available at the ENV OUT port.1032 |
| INPUT | knob | — | Sets the gain level for the signal connected at the INPUT port.1032 |
| LINE/MIC | switch | — | Selects between Line-level and Mic-level sensitivity for the audio input.1032 |
| THRESH | knob | — | Sets the amplitude threshold at which the gate signal is triggered and the GATE LED illuminates.1032 |
Firmware history 0 versions
No firmware history recorded.
References 2
-
[1032]
GRP Synthesizer P12 Envelope Follower Datasheetmanual● verified 2026-05-29
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[1033]
GRP Synthesizer P12 Envelope Follower product pageproduct_page● verified 2026-05-29