4HP Eurorack capacitive touch-strip controller with two CV outputs tracking finger position and touch size, plus four performance modes: Control, Record, Signal, and Notes. Features gesture recording, signal processing, and a 5-note tunable keyboard/sequencer.705
Capabilities 4
CV Processorcv-processor
Signal Mode processes CV or audio input via touch: scale, offset, clip, smooth; outputs processed signal, inverted, and/or envelope detector.705
Gesture Recordergesture-recorder
Record Mode records gestures up to 150 seconds for playback as loops, triggered envelopes, clock-synced, wavetable oscillator, or waveshaper.705
Keyboard/Sequencerkeyboard-sequencer
Notes Mode provides 5 tunable notes (default pentatonic, 0–2V) playable as keyboard with vibrato/glissando or as a 5-step sequencer triggered by external clock.705
Touch Controllertouch-controller
Capacitive touch strip with sub-millimeter accuracy tracks finger position and touch size (pressure proxy), outputting two CV signals in Control Mode.705
Jacks 3 — 1 in / 2 out
Name
Signal
Voltage
Description
Inputs (1)
Input
mixed
-5V to 10V
Mono 3.5mm jack input. Accepts clock signals, triggers, and CV. Range -5V to +10V, customisable in Record and Signal modes. Trigger threshold is 2V.705
Outputs (2)
Bottom Output
mixed
-5V to 10V
Lower mono 3.5mm CV/gate/trigger output. Range -5V to +10V, individually configurable per mode. Carries touch size, inverted signal, envelope, or trigger depending on mode.705
Top Output
mixed
-5V to 10V
Upper mono 3.5mm CV/gate/trigger output. Range -5V to +10V, individually configurable per mode. Carries finger position, pitch, processed signal, or envelope depending on mode.705
Parameters 11
Name
Type
Range
Behavior
Envelope Decay
menu_setting
—
Continuous setting controlling smoothing applied to envelope detector output decay. Slide toward bottom to reduce, toward top to increase. Point turns red at default value.705
Latching
menu_setting
—
Controls hold behaviour when touch ends. Unlatched: outputs drop to 0V. Latched: outputs hold last values. Latch Position: position-mapped outputs hold, touch-size outputs drop to 0V.705
Notes Play Type
menu_setting
—
Selects Keyboard (touch-triggered notes with vibrato/glissando) or Sequencer (clock-triggered step sequencer) play type.705
Output Type
menu_setting
—
Selects what Top and Bottom Outputs carry in Signal Mode: processed/inverted, processed/envelope, or envelope/inverted-envelope.705
Quantisation
menu_setting
—
Controls whether note pitches are stepped to 12-TET semitones (ON) or free (OFF) during manual tuning. 12 semitones per volt of voltage range.705
Record Playback
menu_setting
—
Selects how recorded gestures are played back: Loop (continuous looping), Trigger (one-shot on trigger), Clock (synced to clock input), Wavetable (V/oct controlled oscillator), Waveshaper (CV input scrubs through gesture).705
Signal Input Type
menu_setting
—
Selects DC-coupled CV input (visualised as green point) or AC-coupled audio input (visualised as level meter).705
Slew Rate
menu_setting
0s – 100s
Sub-menu with four continuous selectors for Top Output attack, Top Output release, Bottom Output attack, Bottom Output release slew times. Range 0–100 seconds, non-linearly mapped: first 40% = 0–1s, next 40% = 1–10s, last 20% = 10–100s.705
Touch Input Type
menu_setting
—
Selects from 4 touch input types: Single Slider (position + touch size), Dual Slider (two position sliders), Dual Touch (two touch-size pads), Slider + Touch (position slider 80% + touch pad 20%).705
Touch Sensitivity
menu_setting
—
Global setting. Scales touch size output by applying gain. Slide point between no gain (bottom) and maximum gain (top). At maximum, any touch immediately sends voltage from 0V to maximum of selected voltage range.705
Variable Setting
menu_setting
—
Continuous setting. In Keyboard mode: sets vibrato depth (range of frequency variation). In Sequencer mode: sets glide amount between steps.705
Firmware history 1 version
Version
Released
Notes
v2
2024-10
New features: 1U orientation support; Slider+Touch input type; custom attack/release slew rates for Control Mode; recording up to 150 seconds (Loop/Trigger/Wavetable/Waveshaper); discrete gesture recording in Loop playback; gesture in/out point editing in Wavetable/Waveshaper; new -1V to +1V voltage preset; web-based firmware upgrade tool.705