noise-engineering-lapsus-os

Noise Engineering Lapsus Os

Four-channel fader-based attenuverter and offset controller

8 HP Eurorack module

Lapsus Os is a four-channel attenuator/attenuverter and offset module with faders, designed for live performance. Each channel can attenuate or invert incoming signals, add offsets, or generate standalone CV voltages from 0-5v or plus/minus 5v. With its reversible mounting, dual inputs per channel, and LED faders, it serves as an expressive and centralized control surface for modular systems.

Features

  • Four independent attenuator/attenuverter channels with faders
  • Per-channel Uni/Bi switch for attenuator or attenuverter mode
  • Dual inputs per channel: offset input (+) and attenuating/attenuverting input (x)
  • Dual identical outputs per channel
  • LED faders showing CV level passing through
  • Standalone offset generation when no input is patched (0-5v unipolar or plus/minus 5v bipolar)
  • Rear-board switches per channel for inverted fader behavior
  • Reversible mounting support
  • Input range plus/minus 10v
  • Output range 0-10v unipolar or plus/minus 10v bipolar with input; 0-5v or plus/minus 5v without input
  • 8HP Eurorack format

Controls & Jacks (29)

  • Channel 1 Attenuating/Attenuverting Input— Accepts CV signal to be attenuated or attenuverred by Channel 1 fader and switch.
  • Channel 2 Attenuating/Attenuverting Input— Accepts CV signal to add offset controlled by Channel 1 fader and switch.
  • Channel 3 Attenuating/Attenuverting Input— Left position: unipolar mode attenuates input. Right position: bipolar mode with upper half attenuating and lower half inverting.
  • Channel 4 Attenuating/Attenuverting Input— Accepts CV signal to be attenuated or attenuverred by Channel 2 fader and switch.
  • Channel 1 Offset Input— Accepts CV signal to add offset controlled by Channel 2 fader and switch.
  • Channel 2 Offset Input— Outputs attenuated/offset signal or generated offset from Channel 2.
  • Channel 3 Offset Input— Identical copy of Channel 2 Output A.
  • Channel 4 Offset Input— Accepts CV signal to be attenuated or attenuverred by Channel 3 fader and switch.
  • Channel 1 Uni/Bi— Accepts CV signal to add offset controlled by Channel 3 fader and switch.
  • Channel 2 Uni/Bi— Outputs attenuated/offset signal or generated offset from Channel 3.
  • Channel 3 Uni/Bi— Outputs attenuated/offset signal or generated offset from Channel 1.
  • Channel 4 Uni/Bi— Identical copy of Channel 1 Output A.
  • Channel 1 Output A— Controls attenuation/attenuation with inversion and offset for Channel 1. LED shows CV level passing through.
  • Channel 1 Output B— Identical copy of Channel 3 Output A.
  • Channel 2 Output A— Accepts CV signal to be attenuated or attenuverred by Channel 4 fader and switch.
  • Channel 2 Output B— Accepts CV signal to add offset controlled by Channel 4 fader and switch.
  • Channel 3 Output A— Outputs attenuated/offset signal or generated offset from Channel 4.
  • Channel 3 Output B— Controls attenuation/attenuation with inversion and offset for Channel 2. LED shows CV level passing through.
  • Channel 4 Output A— Identical copy of Channel 4 Output A.
  • Channel 4 Output B— Left position: unipolar mode attenuates input. Right position: bipolar mode with upper half attenuating and lower half inverting.
  • Channel 1— Controls attenuation/attenuation with inversion and offset for Channel 3. LED shows CV level passing through.
  • Channel 2— Controls attenuation/attenuation with inversion and offset for Channel 4. LED shows CV level passing through.
  • Channel 3— Left position: unipolar mode attenuates input. Right position: bipolar mode with upper half attenuating and lower half inverting.
  • Channel 4— Left position: unipolar mode attenuates input. Right position: bipolar mode with upper half attenuating and lower half inverting.
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  • Channel 1 Rear— Inverts Channel 1 fader behavior for creative mounting in either direction.
  • Channel 2 Rear— Inverts Channel 2 fader behavior for creative mounting in either direction.
  • Channel 3 Rear— Inverts Channel 3 fader behavior for creative mounting in either direction.
  • Channel 4 Rear— Inverts Channel 4 fader behavior for creative mounting in either direction.

How-To Guides

  • Centralized CV Performance Controller
  • Bipolar LFO Attenuation and Inversion
  • Four-Voice Decay Hub
  • Signal with Added Offset
  • Upside-Down Rack Mount Configuration
  • Single Fader Dual-Destination CV Distribution
  • Fader-Controlled Static Voltage Generator
  • Multi-Parameter LFO Distribution Hub

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

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