alm-busy-circuits-pip-slope

ALM Busy Circuits Pip Slope

Snappy 4HP envelope generator with CV and looping

4 HP Eurorack module

Pip Slope is a compact 4HP envelope generator capable of both Attack/Decay and Attack/Sustain/Decay envelope shapes, with voltage control over attack and decay times. It offers self-looping for LFO-style cycling, switchable exponential and linear curves, and extremely snappy attack times down to sub-1ms, making it equally suited to percussive transients and slow evolving pads.

Features

  • Compact 4HP form factor
  • Attack/Decay envelope via Trigger Input
  • Attack/Sustain/Decay envelope via Gate Input
  • Voltage control of attack and decay times (0-5v CV inputs)
  • CV input knobs act as attenuators when CV is patched
  • Sub 1ms to approximately 100 second time range
  • Self-looping mode for LFO-style cycling
  • Switchable exponential and linear curve shapes
  • State saved across power cycles
  • Reverse polarity protection
  • Skiff friendly depth
  • Red output level LED

Controls & Jacks (15)

  • Shape— Attenuator for Attack CV input control signal.
  • Loop
  • Loop Mode— Yellow LED indicates when looping mode is enabled.
  • Attack Time— Controls attack time from sub 1ms to ~100 seconds. Fully CCW = sub 1ms, fully CW = ~100s. Acts as attenuator when CV patched.
  • Gate Input— Gate input for Attack/Sustain/Decay envelope mode. Envelope rises then stays high at ~5v whilst gate is high before falling.
  • Envelope Output— 0-5v envelope output. Red LED indicates output level.
  • Trigger Input— Trigger input for Attack/Decay envelope mode. Produces envelope that rises to ~5v then instantly falls.
  • EOS
  • Decay CV Input— 0-5v control voltage input for decay/release time modulation. Patching a cable makes the Decay Time knob act as an attenuator.
  • Output— Red LED indicates envelope output level.
  • Decay Time— Controls decay/release time from sub 1ms to ~100 seconds. Fully CCW = sub 1ms, fully CW = ~100s. Acts as attenuator when CV patched.
  • Attack CV Input— 0-5v control voltage input for attack time modulation. Patching a cable makes the Attack Time knob act as an attenuator.
  • Loop Button— Press to enable/disable automatic looping. Long hold (~3 sec) toggles envelope curve between exponential and linear.
  • Decay CV Attenuator— Attenuator for Attack CV input control signal.
  • Attack CV Attenuator— When a CV cable is patched into Attack CV Input, this knob attenuates the incoming CV signal rather than setting absolute attack time.

How-To Guides

  • Percussive Drum Hit Envelope
  • Slow Pad Swell
  • Self-Looping LFO Modulation
  • CV-Controlled Attack Sweep
  • Linear Looping Staircase
  • Accent Velocity Layering
  • Filter Pluck Sound Design
  • Sustained Drone Gate Hold
  • Rhythmic Tremolo Effect

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

8c571ce