drummergirl

drummergirl · sources · schema v2

Gate-triggered drum voice (kick / snare / hat morph).

A one-shot synth drum voice: fire a gate and it plays a single percussion hit. Mental model — a pitched body oscillator crossfaded against a noise/transient layer, gain-shaped by an internal attack/decay envelope, so one module covers everything from a tuned tom or kick to a noisy snare or hat. There is no separate trigger and tone path to wire: pitch, tone, shape, level, and decay are all on the faceplate (and CV-modulatable), and the gate edge is the only thing you have to patch. It's also the per-voice engine inside RIOTGIRLS, so the timbre you dial here is the same one those voices use.

the faceplate

6 inputs · 1 outputs · 5 params

inputs

id	cable	what it does
`gate`	gate	The trigger: a rising edge fires exactly one drum hit and restarts the internal amplitude envelope. Patch a sequencer gate, a clock, or any pulse here — its level isn't sustained, only the rising edge matters, so hit length is set by the Decay control rather than how long the gate stays high. gate / trigger
`pitch`	cv	CV that adds to the Pitch fader (bipolar, ±1 sweeps the full ±36-semitone range from the knob's center), so an LFO or sequencer can re-tune the body per hit; sampled at the gate edge that fires the note. control voltage (CV); modulates pitch (additive offset — ±1 CV sweeps the full range, centered on the knob)
`tone`	cv	CV that adds to the Tone fader, brightening or darkening the body timbre as it moves. control voltage (CV); modulates tone (additive offset — ±1 CV sweeps the full range, centered on the knob)
`shape`	cv	CV that adds to the Shape fader, sliding the hit between its pitched-body and noise/transient extremes for accents or fills. control voltage (CV); modulates shape (additive offset — ±1 CV sweeps the full range, centered on the knob)
`volume`	cv	CV that adds to the Volume fader (±1 sweeps ±1.0 of gain), for per-hit accent/velocity dynamics. control voltage (CV); modulates volume (additive offset — ±1 CV sweeps the full range, centered on the knob)
`decay`	cv	CV that scales the envelope Decay time (logarithmic), shortening or lengthening the tail of each hit. control voltage (CV); modulates decay (multiplicative ≈ octaves — ±1 CV spans the param’s log range)

outputs

id	cable	what it does
`audio`	audio	The mono drum-hit waveform — the body oscillator and noise layer summed and shaped by the amplitude envelope. Patch into a mixer, a bus, or further FX. audio signal

params

id	label	range	default	curve
`pitch`	Pitch	-36..36semi	0	linear
`tone`	Tone	0..1	0.3	linear
`shape`	Shape	0..1	0.3	linear
`volume`	Volume	0..2	1	linear
`decay`	Decay	0.001..0.5s	0.15	log

controls

control	what it does
Decay	Sets the attack/decay envelope's decay time (1 ms to 0.5 s, log-tapered), so the hit goes from a tight click to a long boom; the Decay CV input scales this.
Pitch	Tunes the body oscillator in semitones (-36 to +36 from its base), turning the same voice into a deep kick, a mid tom, or a high blip; the Pitch CV input adds on top of this.
Shape	Crossfades the hit between its pitched body and its noise/transient layer (0 = mostly body, 1 = mostly noise) — low for toms/kicks, high for snares/hats.
Tone	The body-timbre macro (0..1): shifts the oscillator's brightness/character from dark and round toward bright and edgy.
Volume	Per-hit output gain from silence to 2x, used to set the voice's level in a kit or to drive accents.

source

drummergirl.ts on GitHub.