Brown Noise Generator
Play a deep, soothing brown (red) noise for sleep and focus, which some listeners with tinnitus also find calming. Layer in rain, ocean, wind and fan sounds, set a sleep timer, and let it fade out on its own.
How the Brown Noise Generator works
Brown noise is a deep, steady rumble — like a distant waterfall, heavy surf or rain on a roof — that masks sudden sounds so you can sleep, concentrate or relax. It is the deepest of the common noise colours: where white noise is bright and even like static and pink noise is softer and fuller like steady rain, brown noise rolls off the high frequencies for a soft, low rumble many people find the most soothing. This generator runs entirely in your browser — press Play to start the brown noise, then blend in rain, ocean, wind or a fan and set each one's volume to taste. Set the sleep timer and it fades out on its own. Want a pure test tone instead? Use the Tone Generator.
Frequently Asked Questions
What is brown noise?
Brown noise — also called red or Brownian noise — is a steady, random sound whose energy is concentrated in the low frequencies, dropping about 6 dB per octave as you go higher. That gives it a deep, soft rumble like a distant waterfall, heavy surf or steady rain on a roof. It is the deepest and least harsh of the common noise colours, which is why many people find it more soothing than bright white noise.
Is brown noise good for sleep and focus?
Many people use brown noise to fall asleep, to concentrate while working or studying, and to settle a restless mind, because its deep, even rumble masks sudden sounds and low-frequency disturbances like traffic or a noisy building. Some listeners with ADHD or tinnitus say it helps them focus or eases ringing in the ears. Effects vary from person to person, so try it at a comfortable, low volume and see how it works for you.
What is the difference between brown, pink and white noise?
Brown, pink and white noise are all steady random sounds; they differ in how energy is spread across frequencies. White noise has equal energy at every frequency and sounds bright, like static. Pink noise reduces the highs so it sounds fuller and softer, like steady rainfall. Brown noise cuts the highs even more for a deep rumble like a waterfall or distant surf. Brown is the deepest, white the brightest, and pink sits in between.
Is it safe to play brown noise all night?
Brown noise is just sound, so the main thing to watch is volume — keep it low enough that it is comfortable and does not strain your hearing over long periods. Use the built-in sleep timer if you would rather it fade out after 15 to 60 minutes instead of playing until morning. The sound is generated live in your browser and nothing is recorded or uploaded.
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