Brown noise - deep, grounding sound for sleep and focus
Brown noise puts more energy in the low frequencies, so it feels like distant thunder or a heavy waterfall. Softer on the ears than white noise, it's the color people reach for to calm a racing mind.
What is brown noise?
Brown noise (also called red or Brownian noise) drops about 6 dB per octave - the deepest of the noise colors. Where white noise spreads energy evenly across every frequency, brown noise leans heavily into the bass.
The result is a low, steady rumble that masks sound without the hiss - closer to a waterfall heard from inside a cabin than to TV static. That gentleness is why so many people can listen to it for hours.
What people use it for
The low rumble masks traffic and neighbours without startling you awake.
Many people with ADHD report brown noise helps quiet internal chatter while working.
A grounding texture to breathe against when the mind won't slow down.
Steady low-frequency sound can make ringing less noticeable, especially at night.
Brown noise in Noizim
Noizim's brown noise is generated, not looped - no seams, no repeats. Layer it under rain or a low hum, set the drift-off timer, and it fades out on its own after you're asleep.
Frequently asked
Many people find brown noise gentler for long listening because its energy sits in the low end, without white noise's hiss. White noise masks sharp sounds more aggressively. Try both - Noizim has both free.
Yes, at a moderate volume. Noizim's drift-off timer can also fade it out after you fall asleep so it doesn't run until morning.
Not for the colour - it's named after Brownian motion, the random walk that produces its deep, low-weighted frequency profile.