Noise Engineering introduces Virt Iter Legio, Librae Legio, the Legio Oscillator and DSP Platform


Noise Engineering has introduced the Legio oscillator/DSP platform for Eurorack modular systems – Virt Iter Legio and Librae Legio.


Their concept for Legio is that it is a Eurorack hardware platform that can load a wide variety of firmware, making it the foundation of a variety of module types. Anyone with any Legio module will be able to try any firmware for it, for free.


The Modules:


  • Virt Iter Legio is an oscillator that builds on the synthesis algorithms used for NE’s contribution to the Arturia MicroFreak and their software plugin Virt Vereor.
  • Librae Legio is a dynamics processor, featuring compression, expansion, limiting, noise gating, and two styles of gentle distortion.



“The Legio platform brings the power of a reprogrammable and multifunctional module down to a 6 HP size, perfect for any system,” says NE’s Markus Cancilla. “It’s an exciting development and we’re thrilled to be able to share it with the world!”



Virt Iter Legio


Virt Iter Legio is a stereo oscillator with a distinct and versatile sound. Its three modes – Bass, SawX, and Harm – will be familiar to users of Noise Engineering’s free Virt Vereor plugin or those who have the Arturia Microfreak, both of which are based on the same algorithms.


Virt Iter Legio features independent left and right phase-modulation inputs, a sync input, and a lush vintage-inspired chorus. This small oscillator puts unique sounds right at your fingertips and makes them easy to manipulate within the stereo field. Virt Iter Legio works well for beautiful pads, hard-hitting basses, and leads that can be simple or otherworldly.




  • 6 HP and US$279, available and in stock
  • 3 stereo oscillator algorithms: Bass, SawX, and Harm
  • Independent left and right phase-modulation inputs
  • Vintage-inspired chorus spreads sounds across the stereo field
  • Accurate pitch tracking from -2v to +5v using an automatic self-calibration process
  • Oscillator/DSP platform: change the firmware on your module to a different module on the Librae platform



Librae Legio


Librae Legio is a stereo dynamics processor, designed for the master bus with compression, limiting, expansion, and optional saturation.


Librae Legio was designed to work with any type of patch. It’s great for limiting, compression, and expansion. Noise Engineering says they created it to be able to be applied as transparently as possible, but also so that you can crank the settings to really squish your sounds for maximal crunch.


They added a saturation stage that you can engage, if you wish for some slight harmonic distortion: it adds a touch of color and some tape-like effects to louder elements. It’s also CV controllable and works great with mono or stereo signals.


Librae Legio also has a sidechain filter that the user can set to change the behavior of the dynamics processing.




  • 6 HP and US$279, available and in stock
  • Works in both mono and stereo
  • Incredibly clean compression, expansion, and limiting
  • Adjustable noise gate avoids unwanted noise when heavily processing sounds
  • Configurable sidechain filtering changes how the processing reacts to your sounds
  • Optional saturation adds flavor to your mix
  • Oscillator/DSP platform: change the firmware on your module to a different module on the Librae platform


The modules are available now, priced at $279.



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