Brown Noise: Free Online Player and Download
Brown noise for sleeping, focus, or a loud street, free to play in this browser
- Free, no sign-up
- Deep, low rumble
- Files up to 10 hours
How to play it
- 1
Press Play. The deep rumble starts in your browser.
- 2
Add Rain or Fan on top if you like, then set a sleep timer.
- 3
Open Download, pick a length, and save a brown noise MP3 or WAV. M4A and FLAC are there too.
File sizes for each download
Free files of the same rumble at six lengths. MP3 and M4A are small for a phone, and FLAC and WAV keep every sample
| Length | About this size |
|---|---|
| 10 minutes | MP3 24 MB, M4A 19 MB, FLAC 67 MB, WAV 120 MB. Long enough to fall asleep. |
| 30 minutes | MP3 72 MB, M4A 58 MB, FLAC 200 MB, WAV 350 MB. Long enough for a nap. |
| 1 hour | MP3 140 MB, M4A 120 MB, FLAC 400 MB, WAV 690 MB. |
| 2 hours | MP3 290 MB, M4A 230 MB, FLAC 800 MB, WAV 1.4 GB. |
| 5 hours | MP3 720 MB, M4A 580 MB, FLAC 2.0 GB, WAV 3.5 GB. The longest WAV, because a WAV file cannot be larger than 4 GB. |
| 10 hours | MP3 1.4 GB, M4A 1.2 GB, FLAC 4.0 GB. A full night in one file. For 10 hours with no loss, pick FLAC. Check free space before you save it. |
Sleep with brown noise
Safe level and timer
Long, loud listening can damage hearing, say Cleveland Clinic and the Sleep Foundation. Low notes can seem softer than they are, so keep the slider low and set the timer.
No box to buy
The phone or computer you already have does the job of a brown noise machine. Keep it on charge for a long night.
Brown vs white noise side by side
Play Brown alone for a minute, then White alone. A white noise vs brown noise sleep test of your own, one night each, tells you more than any chart.
Dark screen
Tap Dark screen before you turn off the light. The screen goes black, and one tap brings the player back.
Questions
- What is brown noise?
- It is random sound whose energy falls 6 dB per octave, so low notes are strong and high notes are soft. The name comes from Brownian motion, the random movement of small particles, not from the color brown. The brown noise frequency curve you hear is made from that exact math.
- How does it sound?
- Like strong wind, surf heard from a distance, or the low roar inside a plane. It has much less hiss than white, so many people find it softer.
- What is brown noise vs white noise?
- Both are random sound. White hisses, because every frequency gets the same energy. Brown rumbles, because most energy is in the low notes. On brown noise vs white noise for sleep, reviews call the evidence for noise and sleep mixed. Pick the one you stop noticing.
- What does brown noise do?
- It covers other sounds with a steady low roar. Traffic, a fridge hum, or a neighbor's music then stands out less. Many people use it as background for sleep, reading, or work.
- What is it good for?
- Covering low sounds, a calm background for work, and a softer choice for people who find white too sharp. If you try brown noise, ADHD or not, keep the level low.
- Does it help with ADHD?
- ADHD and focus: some people with ADHD say this sound helps them focus. Cleveland Clinic says no significant study has tested brown noise for ADHD. A 2022 white noise study helped some children with ADHD and hurt attention in children without ADHD. These sounds are not a medical device or medical advice.
- Is brown noise harmful?
- The known risk is volume. Long, loud listening can damage hearing. Keep the slider low and set the timer. If you hear ringing in your ears, see a doctor or an audiologist.
- Is it good for sleep?
- It may be for you. The Sleep Foundation says some studies found people fell asleep faster with white noise, and reviews call the evidence mixed and of low quality. Brown is a darker version of the same idea. Try it for a night with a 60 minute timer.
- Is it bad to sleep with it every night?
- Research gives no clear answer. If you use it every night, keep it quiet and let the timer stop it after you fall asleep. Long, loud listening is the known risk.
- What color noise is best for anxiety?
- We make no claim that any noise color treats anxiety. Some people find a low rumble calm, and you can play each color in turn. Talk to a doctor about anxiety.
Privacy
The rumble plays inside this tab. Nothing is uploaded, and every control works without an account.
One more thing this browser can do
Suparelay calls any phone from this browser, with no app and no SIM card.