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Noise Engineering Sinclastic Empulatrix Envelope / VCA

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Noise Engineering Sinclastic Empulatrix

The Noise Engineering Sinclastic Empulatrix is an envelope generator with voltage controlled clamp for use in Eurorack modular synthesizer systems. Inspired by the minimal envelopes of the Roland TR-808, the module features an exponential curve and controllable attack and release parameters. The time range between both parameters varying from 50 microseconds to 5 seconds. Both controls are normalized to a voltage-controlled clamp, which behaves like a VCA—albeit with more distortion on the release.

Sinclastic Empulatrix Features

  • Inspired by the simple, yet remarkably clever, envelopes used in the cymbals of the TR-808.
  • Simple exponential decays are applied to the signal via clamping rather than the more typical scaling. 
  • With binary signals, such as a square wave, a clamping VCA will sound like a typical VCA. For analog signals it will add a clipping effect that gets stronger as the envelope decays.
  • Control knobs for attack and release.
  • Controlled by gate inputs that determine the timing of the envelope. 
  • The envelope is also scaled by the voltage of the gate so it can be used to control the amplitude of the envelope.
  • Simple input and output for the clamping VCA. It is DC-coupled so is suitable for control voltages and can be used without the envelope generator by turning the attack and release fully counter-clockwise and driving the gate with an analog CV.
  • This module can also be used as an asymetric slew: the envelope output will track the gate input but will be slewed by the attack and release times based on relative voltage.
  • 4 HP
  • Standard Eurorack Power
  • +12V @ 15mA ; -12V @ 25mA
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