wmd-javelin

WMD Javelin

Expressive accent envelope with integrated VCA

6 HP Eurorack module

Javelin is an expressive ADSR envelope generator with integrated VCA, featuring a digitally controlled analog core inspired by percussion and bassline synthesizers. It offers accent stacking, three envelope time ranges, three exponential curve settings, and looping — giving patches dramatic dynamics and life. The accent system allows velocity-like expression in modular, making it ideal for percussive and bass-driven patches.

Features

  • Full ADSR envelope with digitally controlled analog core
  • Integrated VCA with 22Vpp range and linear curve
  • Three exponential curve settings (linear, slight, very exponential)
  • Envelope looping with sustain stage active in loop mode
  • Three envelope time ranges (fast, medium, slow) up to 88 minutes with CV
  • Accent CV input with three accent levels (+32%, +42%, +48%)
  • Accent stacking feature with slewed accent response
  • Three envelope output level settings (3V, 5V, 7V peak)
  • CV control of decay time via RELEASE jack (MODE + LOOP combo)
  • CV control of attack and release times via dedicated jacks
  • Envelope normalled to AMP CV for zero-patch VCA operation
  • ENV output jack for using envelope as a modulation source

Controls & Jacks (26)

  • SUSTAIN— Potentiometer sets the sustain level of the envelope.
  • RELEASE— Potentiometer controls the release time of the envelope.
  • DECAY— Potentiometer controls the decay time of the envelope.
  • AMP IN— Audio input to the integrated VCA.
  • ENV OUT— Envelope output (before LEVEL attenuation).
  • ACCENT CV— CV input for accent control (0-5V).
  • ATTACK— Potentiometer controls the attack time of the envelope.
  • AMP OUT— Audio output from the integrated VCA.
  • AMP CV— CV input for integrated VCA.
  • GATE— Gate input for the envelope.
  • ATTACK CV— CV input for attack time control.
  • ENV LED— Status LED showing pre-level voltage of the envelope.
  • RELEASE CV— CV input for release time control (enabled via MODE + LOOP).
  • RESET— Reset input that forces the envelope back to 0V.
  • LOOP— Toggles looping on the envelope. Sustain stage remains active in loop mode. Hold and press with MODE to enable CV control of decay.
  • ACC LED— Status LED showing current accent level. Blinks 3 times when accent stacking is enabled, once when disabled.
  • MODE— Toggles between two envelope completion modes. LED lit = always complete all stages regardless of gate length. LED off = envelope only conti
  • AMP CV LED— LED in crosshairs at top of VCA column showing AMP CV level.
  • LOOP— Toggles looping on the envelope. Sustain stage remains active in loop mode. Hold and press with MODE to enable CV control of decay.
  • RANGE— Cycles through three envelope time ranges: Fast (350µs-1.15s), Medium (700µs-5.5s), Slow (1ms-23s). Dim LED indicates fastest ranges.
  • LEVEL— Quick press cycles through three attenuation levels of the envelope output. Hold to slowly cycle through three accent levels (max level acce
  • EXPO— Cycles through 3 levels of exponential envelope response: Off (linear), Dim (slightly exponential), Lit (very exponential). Hold LOOP to cyc
  • AMP CV (knob)— Potentiometer for integrated VCA CV control. The envelope is normalled to this input.
  • ACCENT— CV input for accent control (0-5V).
  • IN— Audio input to the integrated VCA.
  • OUT— Audio output from the integrated VCA.

How-To Guides

  • Punchy Percussive Bass Hit
  • Accented TB-Style Bassline
  • Ambient Drone Swell
  • Looping Envelope as LFO/Modulation Source
  • Plucked String / Snappy Pluck
  • Sequencer-Driven Dynamic Accents
  • Extreme Slow Decay Drone
  • Simple VCA with Envelope Normalled
  • Gate Length Expressive Playing
  • Rhythmic Envelope Retriggering with RESET

Explore the interactive Javelin panel on BleepDex — tap any control to learn what it does.

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