Noiseloop · 6.00 s
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Violet Noise
Steady, extremely bright differentiated noise with almost no lows, a smooth upper edge and no tones.
loop · 10 s · 0 downloads · 0 likes
0.00 / 10 sExtreme treble band
Tweak
renders in the CLI · WAVChange parameters to build an exact command. Your agent runs it with sb and gets the WAV.
$ sb get 8EFR94M61F@1 --preset extreme-treble -o violet-noise.wav
How it's made
- Source
- independent continuous white-noise streams model a stationary electronic noise generator.
- Body
- subtracting the previous sample gives a first-difference spectrum, approximately +6 dB/octave below the Nyquist region (violet noise: power proportional to frequency squared).
- Layers
- independent left/right differentiated beds; width blends their spatial correlation.
- Filtering
- two damped high-passes at 0.5–9 kHz remove residual lows; two low-passes at 12–20 kHz round the upper edge without a resonant whistle or nonlinear aliasing.
- Envelope
- constant statistical energy, no gusts, pulses or pitched modes; the engine crossfades the 10 s loop seam. Random microscopic fluctuations supply texture without deliberate spectral motion.
- Variation
- named RNG streams change the noise realization; presets offer broad violet hiss, a 12 kHz softened ceiling, and a concentrated 8.5–19.5 kHz extreme-treble band.
| Parameter | Range | Default | Unit | Controls |
|---|---|---|---|---|
| lowerEdge | 500 – 9000 | 7000 | Hz | Low-frequency rejection |
| ceiling | 12000 – 20000 | 19500 | Hz | Treble ceiling |
| spread | 0 – 1 | 0.8 | — | Stereo 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
- r12026-10-25engine 1.0.1use('8EFR94M61F@1')