Sound of SwedenWhat Is White Noise? White, Pink, and Brown Noise Explained
A quick explainer on white, pink, and brown noise — what the color names actually mean, and how to tell which one you're listening to.
"White noise" gets used as a catch-all for any steady background sound, but the color names actually describe something specific: how loud each frequency is relative to the others.
White noise
True white noise has equal energy across every frequency, which makes it sound bright and hissy — closer to television static than rain. It's effective as a masker, but some people find the high-frequency content harsh over long periods.
Pink noise
Pink noise reduces the energy at higher frequencies, so it sounds noticeably deeper and softer than white noise while keeping the same broadband, unstructured quality. Steady rainfall is a close natural example — it has more low-and-mid frequency content than pure white noise.
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▶ Watch on YouTubeBrown noise
Brown noise pushes further in the same direction — even less high-frequency content, more low-end. It sounds like a deep rumble, closer to a waterfall or distant thunder than to rain.
Which one should you use?
None of them is objectively "correct" — it's a matter of what your ear tolerates for hours at a time. If plain white noise feels too sharp, a natural recording like rain or a forest sits closer to pink noise territory and is usually easier to listen to for a full night or a full work session.