Sawstack Legio
Firmware for Legio (Noise Engineering)
Five-voice supersaw oscillator with detune, three morph modes (stack, rich, sub), a stereo VCA width switch, encoder pitch trim and V/Oct and gate inputs. The same DSP core also builds as a macOS AU/VST3 plugin.
by Carl Tashian
- Distribution
- Build from source yourself
- License notes
- Firmware source is MIT per the repository LICENSE. Plugin binaries built from plugin/ are also subject to JUCE's AGPL-3.0 terms unless a commercial JUCE license is held.
- Source
- github.com https://github.com/tashian/legio-sawstack
- Homepage
- github.com https://github.com/tashian/legio-sawstack
- oscillator
- synth-engine
Description
It is built on libDaisy's DaisyLegio board class, and the README gives a calibration procedure for the V/Oct input, since ADC offset and gain differ between modules. The gate input hard-syncs the voices. It is one of three Legio firmwares by the same author.
Install notes
No prebuilt binary. Build with make in firmware/ and flash with make program-dfu after entering the bootloader (hold BOOT and press RESET on the Patch SM). Calibrate V/Oct as described in the README. Noise Engineering's firmware portal restores the stock firmware.
Version history
| Version | Date | Notes |
|---|---|---|
| main @ c3ce998 | 2026-09-22 | No tagged releases; this is the latest commit. |