Blue noise - crisp, airy sound with energy up high
Blue noise is the mirror of pink - it puts more energy in the high frequencies, so it's bright, crisp and airy. It's a light, shimmery masker that some people prefer for a clean, non-boomy background.
What is blue noise?
Blue noise rises about 3 dB per octave, emphasising the treble. It sounds thin and airy, like a fine spray or a distant hiss, with none of the low rumble of brown noise.
Because it favours the high end, blue noise can mask sharp, high-pitched sounds well while staying light. It's a niche but useful color when you want brightness without heaviness.
What people use it for
Covers high-pitched sounds and hiss with a clean, airy texture.
A shimmery backdrop that stays out of the way.
A crisp alternative when brown or pink feel too heavy.
Adds air on top of a deeper bed like brown or rain.
Blue noise in Noizim
Noizim generates blue noise on-device and lets you blend it with warmer colors - a touch of air over brown noise makes a rich, full set.
Frequently asked
Blue noise emphasises higher frequencies, making it bright and airy - the opposite balance to pink or brown noise.
A light, crisp masker for high-pitched sounds, or a bright layer on top of a deeper bed.
Some prefer it, but its brightness makes warmer colors like brown or pink more popular for sleep.