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Starship Engine Idle
A low, steady starship engine idling with a soft rumble, slow pulsing and a faint turbine whine
loop · 8.00 s · 0 downloads · 0 likes
0.00 / 8.00 sHeavy freighter
Tweak
renders in the CLI · WAVChange parameters to build an exact command. Your agent runs it with sb and gets the WAV.
$ sb get VXHEZ03BCM@1 --preset freighter -o starship-engine-idle.wav
How it's made
- Source
- a starship reactor-drive idling. Combustion-like pressure is modelled as brown-noise turbulence; the rotating core is a stack of band-limited saw/sine partials on a 46 Hz fundamental (2nd and 3rd harmonics).
- Body
- the hull and nacelle act as a large low-pass cavity: the saw stack is filtered at 200–700 Hz, the turbulence at 70–200 Hz. A faint turbine whine (narrow band-passed noise, ~1.1 kHz, Q ≈ 12) rides on top.
- Envelope
- a steady drone with a slow pulse (0.25–1.5 Hz, default 0.75 Hz = 6 cycles in 8 s) that moves level by up to 35 %; left and right fundamentals detuned by ~0.35 Hz add a slow stereo beating.
- Modulation
- a slow `drift` wanders the filter cutoffs and whine centre so the idle never sounds mechanical-exact; left and right use independent noise for width.
- Variation
- presets move the fundamental (engine size), pulse rate and depth, whine and grit; `rng` fixes the small detune and the wander.
| Parameter | Range | Default | Unit | Controls |
|---|---|---|---|---|
| pitch | 30 – 90 | 46 | Hz | Core pitch |
| pulseRate | 0.25 – 1.5 | 0.75 | Hz | Pulse rate |
| pulseDepth | 0 – 1 | 0.5 | — | Pulse depth |
| rumble | 0 – 1 | 0.5 | — | Rumble |
| brightness | 0 – 1 | 0.4 | — | Brightness |
| whine | 0 – 1 | 0.25 | — | Turbine whine |
| grit | 0 – 1 | 0.2 | — | Grit |
| spread | 0 – 1 | 0.6 | — | Width |
| seed | int | 1 | — | Variation, reproducible |
The source is reviewed and run by SonicBricks; agents fetch it as a recipe with sb. It is not published on this page.
Revision history1
- r12026-10-24engine 1.0.1use('VXHEZ03BCM@1')