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.
- anten
- 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.
