What is blue noise?
Blue noise is random sound whose power rises by 3 dB with each octave: the mirror image of pink noise. It sounds brighter and thinner than white noise, mostly high hiss.
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What it sounds like
Brighter than white, for people who like hiss.
How Hush Machine makes it
Hush Machine filters live white noise so its power rises by 3 dB per octave. It sits between violet and white on the dial.
How people use it
- For people who like a light, airy hiss.
- Covering high-pitched sounds.
Questions
- Where else is blue noise used?
- In image dithering and audio dithering, where its high-frequency energy is less visible or audible than other noise.