Brown noise for studying and sleep
Brown noise is the deepest of the noise colors: a steady rumble, like a distant waterfall, heavy rain heard from indoors or a jet engine in flight. This page opens with it already selected; just tap the round button. The sound is calculated live, so there are no loop gaps and no ads in the middle of your study session.
How to use it
- Tap the round button. Brown noise is already selected; the other colors are right next to it for comparison.
- Adjust the volume until it covers the background noise, and no more. For studying, keep it at a level where you can still hear someone call you.
- For a study session, choose 30 min or 1 h under Turn off after: the sound fades out slowly and lets you know the block is over.
- Too monotonous? Add rain or a fan under Second sound and adjust the mix.
- For sleeping, use Black screen and keep the phone away from your pillow.
Help and explanations
The name doesn't come from the color but from Brownian motion, described by the botanist Robert Brown: the signal wanders at random like a particle in a liquid and, as a result, loses 6 dB with every octave up. What's left is lots of bass and almost no hiss.
Brown noise for studying and working
Brown noise masks low, steady sounds well, like traffic, construction, air conditioning and a TV in another room, without the harsh hiss that gets tiring with white noise. Because the sound stays the same the whole time, after a few minutes your ear stops paying attention to it and it becomes a neutral background.
It works well in blocks: 25 or 50 minutes of studying with the noise and the timer on, then a break without it. For coworkers' voices and conversation, pure brown noise masks little because speech sits above 300 Hz; mix in some rain or switch to pink noise.
Brown noise and ADHD
Brown noise has become a hot topic on social media as an aid for people with ADHD. Research on background noise and attention is still scarce and small-scale, with mixed results, and most of it used white or pink noise. If it helps you stay focused, use it; just don't mistake it for treatment, which is still a job for doctors and psychologists.
Why brown noise disappears on a phone
Almost all of brown noise's energy is below 200 Hz, and a phone speaker barely plays bass. On a phone it sounds quiet and thin; with headphones, a speaker or a TV it really comes through. If the phone speaker is all you have, try pink noise, which has more midrange.
Tips
- With headphones, brown noise is deceptive: it seems quiet, but the bass is strong. Stay below half of your device's volume.
- If the bass feels heavy, switch to pink: the same steady-rain feel, with less weight.
- Pure brown noise is what you get here with Second sound set to None: no music, no voice, nothing on top.
- On a laptop, use headphones or an external speaker; the built-in speakers cut almost all the bass.
Frequently asked questions
Does brown noise help you study?
It works as a background that hides outside noise and makes your surroundings predictable, and many people feel they concentrate better that way. It's not guaranteed: some people do better in silence. Try it for a few days and compare.
Does brown noise help with ADHD?
There isn't enough evidence to say it treats or improves ADHD. You can use it like any background sound, but diagnosis and treatment come from a health professional.
What's the difference between brown noise and white noise?
White noise has equal energy at every frequency and sounds like hiss. Brown noise loses 6 dB per octave and sounds like a deep rumble. Pink sits in between, at −3 dB per octave.
Is brown noise good for sleep?
Many people prefer brown noise for sleep precisely because it has no harsh hiss. Keep the volume low, preferably through a speaker rather than headphones, and use the timer to turn it off after you fall asleep.
Can I listen with the screen off?
On many Android phones the sound keeps playing with the screen off and shows up in the lock screen controls; on iPhone it depends on the system and the browser. If it stops, use Black screen, which keeps the screen on and black.
Why is it called brown noise?
Brown here is the surname of Robert Brown, of Brownian motion, not the color. That's why it's also called Brownian noise, and sometimes red noise.