joranalogue-contour-1

Joranalogue Contour 1

Voltage-controlled bidirectional slew limiter and function generator

8 HP Eurorack module

Contour 1 is an 8HP analogue slew limiter / function generator built around a precision bidirectional core. Independent rise and fall rates, voltage-controllable from 500 µs to 30 seconds (or 30 ms in audio range), make it equally at home as a portamento glide, an AR/AD envelope generator, an envelope follower, an LFO or a temperature-stable VCO. Both slopes are individually bendable from concave through linear to convex with minimal time deviation, and rise/fall slope-gate outputs plus an inverted analogue output expose every stage of the cycle. A precision +10V gate-input reference and a schmitt-action trigger / hold input make it reliable from any signal source.

Features

  • Analogue voltage-controlled bidirectional slew limiter
  • Precision pitch-accurate slewing (portamento on 1V/oct CV)
  • Independent rise and fall rates with separate sliders and CV
  • Voltage-controllable slope bend (concave / linear / convex) with minimal time deviation
  • Real-time LED feedback on slew sliders, brightness tracks output
  • Dedicated Gate In with internal +10V reference for uniform AR envelopes
  • Trigger button + Schmitt-action Trigger In for one-shot AD envelopes
  • Hold input freezes the slew core for paused envelopes / sync
  • Loop switch for temperature-stable LFO / VCO operation
  • Gated oscillation in loop mode (insert cable in Gate In to enable)
  • 1 volt/octave tracking over several octaves
  • Front-panel V/oct trim potentiometer

Controls & Jacks (19)

  • Fall Bend
  • Slew/Loop
  • Full/Audio Range
  • Rise Bend
  • Gate In
  • Trigger
  • Fall Bend CV In
  • Rise Slew
  • Trigger In
  • Hold In
  • Main Out
  • Fall Rate CV In
  • Fall Slew
  • Rise Rate CV In
  • Rise Bend CV In
  • Fall Slope Out
  • Analog In
  • Rise Slope Out
  • Inverted Out

How-To Guides

  • AR envelope from any gate
  • AD envelope from a trigger
  • Temperature-stable VCO
  • Improved saw oscillator
  • Envelope follower
  • Slew-as-lowpass filter

Explore the interactive Contour 1 panel on BleepDex — tap any control to learn what it does.

8c571ce