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Blue noise
Updated 22 October 2026
Blue noise is the opposite of pink noise. Its energy rises with pitch, 3 decibels per octave, so it sounds thin, airy, and bright, like spray from a hose. Few people use it to relax, but it is worth hearing to understand the noise colors, and some use it to cover high-pitched sounds.
Press play
Play opens the sound masker with this mix already loaded, so you can hear it and shape it.
How to set it up
- Start with the volume low. Bright noise feels louder than it is.
- Press Play on Blue noise.
- Compare it with White and Violet to hear the direction it leans.
Blue noise vs white noise
White noise is flat across frequencies. Blue noise tilts up, so the lows are quieter and the highs are louder. It sounds thinner and hissier.
Where blue noise is used
In audio, blue-shaped noise is used in dithering, to push unavoidable noise up to frequencies where it is less audible. In printing and graphics, blue noise patterns place dots so they look smooth instead of clumpy.
Questions
What is blue noise?
Noise whose energy rises by 3 decibels per octave. It sounds bright and thin.
Is blue noise good for sleep?
Rarely. Most people sleep better with darker noise.