What the research actually found
A 2024 systematic review and meta-analysis looked at white and pink noise during tasks in children and young adults. It found a small average benefit for people with ADHD or elevated attention symptoms, and a small average harm for people without. Evidence quality was limited and the reviewers said so.
Two things follow. Brown noise was not the sound tested, so the finding is being borrowed. And a response to noise is not a diagnosis: liking brown noise says nothing about whether you have ADHD, and disliking it says nothing either.
The mistake: treating it as a volume problem
The usual pattern is to turn brown noise up when it stops working, on the theory that more sound means more masking. What people describe as helpful, though, is steadiness — a background that never changes, so nothing in it competes for the thing attention keeps sliding off.
Steadiness has nothing to do with level. Fifty per cent held constant for fifty minutes does more than a loud sound you keep adjusting, and adjusting it is itself the distraction. Set it once and leave the fader alone.
A short timer on purpose
Fifty minutes, not ninety and not all night. The sound stopping is an external cue that a block has ended, which is more use than a sound that runs until you notice the afternoon has gone.
If fifty is too long to start, use the 30-minute chip. A block you finish beats a block you abandon.
What the generator produces
Rendered on 2026-09-04 from the browser's own per-sample algorithm, 30 seconds at 48 kHz, measured with the EBU R128 meter and an averaged 8192-point FFT.
| Layer | Preset level | Loop | Loudness | RMS | Centre | Low / mid / high |
|---|---|---|---|---|---|---|
| Brown Noise | 50% | generated, no loop | -15.5 LUFS | -13.9 dBFS | 537 Hz | 65.9% / 31.7% / 2.3% |
- What this preset cannot do: The measurable claim on this page is about a signal, not about attention. Brown noise is steady and low; whether that helps you is something only a block with it and a block without it can answer.
Play brown noise for a focus block
- Open this page in any browser.
- The preset is already applied: brown noise at 50%, timer at 50 minutes.
- Press play, then do not touch the fader again until the timer ends.
- Run one block without it later the same day and compare.
Frequently asked questions
Does brown noise help with ADHD?
There is no good evidence for brown noise specifically. A 2024 meta-analysis of white and pink noise found a small average task-performance benefit in young people with ADHD or elevated attention symptoms, and a small average harm in those without. It is not a treatment and it does not replace assessment or care.
Why does brown noise feel different from music?
It has no words, no melody and no structure to follow. What people describe as useful is that steadiness rather than the sound itself.
How loud should it be?
Loud enough to flatten the room and no louder. This preset starts at 50%. Raising it when focus slips usually makes the sound the new distraction.
Should it run all day?
The timer here is 50 minutes on purpose. A sound that ends gives the block an edge; a sound that runs all day stops being a signal.
Can this replace medication or therapy?
No. It is a background sound in a browser. Anything about diagnosis or treatment belongs with a clinician.