| project name: | stjörnuíþrótt |
| project url: | https://github.com/frederickk/stjoernuithrott |
| author: | frederickk |
| description: | drone inspired by Moffenzeef Stargazer |
| discussion url: | https://llllllll.co/t/33889 |
| tags: | synth drone midi |
Stjörnuíþrótt1
Drone synth for Norns/Fates heavily inspired Moffeenzeef Stargazer. Much appreciation goes to Moffeenzeef for creating the Stargazer and kergener for their SCgazer Supercollider engine which serves as the backbone for this Norns version.
Follow development progress at https://llllllll.co/t/33889.
The hardware Stargazer has some impressive drone capabilities, which are emulated here:
- dual wavetable oscillator with 90 arbitrary waveforms
- sub-octave, detune, volume for second oscillator
- 2 resonant filters
- sample rate reduction
- bit rate reduction
- 3 wavetable LFOs
- CMOS distortion with 100x gain
Demo
Here’s brief (albeit limited exposé of all the sonic possibilities available) demo highlighting how it can be used with and without an external controller.
Requirements
Norns or Fates or device. For Fates owners, the pitch value can be persistently controlled using the 4th encoder, for Norns owners it’s E2 the first page P0
Install/Update
Stjörnuíþrótt can be installed via Maiden’s project manager.
After install or update RESET or SLEEP is required, because Stjörnuíþrótt installs a new engine.
Params
The params for Stjörnuíþrótt are vast. As with the original Stargazer knob twiddling and experimentation are encouraged. However, here’s a table of all the controls and their values (also listed within the params menu).
| Page | Controller | Description | Values |
|---|---|---|---|
| All | E1 | Change page | |
| All | K2 | Toogle sub-octave 2nd oscillator | On or Off |
| All | K3 | Randomize parameters | |
| 0 | E2 or E4 Midi Note |
Pitch | 16.35 – 1046.5 Hz |
| 0 | E3 | Detune parameter of the 2nd oscillator | 0 – 100% (relative to pitch) |
| 1 | E2 Midi Velocity |
Volume | 0.0 - 1.0 |
| 1 | E3 | Gain stage for CMOS distortion | -1 is clean, 1 is dirty |
| 2 | E2 | Waveform selector | 0 – 89 |
| 2 | E3 | Mix for 2nd oscillator. | Only osc. 1, both osc., Only osc. 2 |
| 3 | E2 | Cutoff frequency for the 1st filter | 1 – 1320 Hz |
| 3 | E3 | Cutoff frequency for the 2nd filter | 1 – 1320 Hz |
| 4 | E2 | LFO of 1st filter | Sine, Tri(angle), Saw, Pulse |
| 4 | E3 | Rate of 1st LFO | 0.05 – 100.0 |
| 5 | E2 | LFO of 1st filter | Sine, Tri(angle), Saw, Pulse |
| 5 | E3 | Res of 1st LFO | 0.0 – 1.0 |
| 6 | E2 | LFO of 1st filter | Sine, Tri(angle), Saw, Pulse |
| 6 | E3 | Depth of 1st LFO | 1 none, 0 max |
| 7 | E2 | LFO of 2nd filter | Sine, Tri(angle), Saw, Pulse |
| 7 | E3 | Rate of 2nd LFO | 0.05 – 100.0 |
| 8 | E2 | LFO of 2nd filter | Sine, Tri(angle), Saw, Pulse |
| 8 | E3 | Res of 2nd LFO | 0.0 – 1.0 |
| 9 | E2 | LFO of 2nd filter | Sine, Tri(angle), Saw, Pulse |
| 9 | E3 | Depth of 2nd LFO | 1 none, 0 max |
| 10 | E2 | LFO of 3rd filter | Sine, Tri(angle), Saw, Pulse |
| 10 | E3 | Rate of 3rd LFO | 0.05 – 100.0 |
| 11 | E2 | LFO of 3rd filter | Sine, Tri(angle), Saw, Pulse |
| 11 | E3 | Depth of 3rd LFO | 1 none, 0 max |
| 12 | E2 | Sample rate reduction | 100 – 48000 Hz |
| 12 | E3 | Bit rate reduction | 0 – 24 bits |
Midi
Bolded params above are controllable via the Midi commands listed. All other commands can be mapped to CC values within the Norns menu parameters > map > ...
Development
SSH into your Norns/Fates, then enter the following commands in terminal.
$ cd dust/code
$ git clone https://github.com/frederickk/stjoernuithrott.git
If you want to get the latest version run these commands:
$ cd dust/code/stjoernuithrott
$ git fetch origin
$ git checkout primary
$ git merge origin/primary
Changelog
- v1.1.0
- Fixed sub-octave and wave selector bugs
- Fixed order of UI elements
- Added LFO res
- Added Midi passthrough
- Added parameter randomization
- v1.0.0 Initial release
1 Stjörnuíþrótt is a crazy name huh? It’s old Norse for Astronomy.