The same idea as white noise with the weight moved down: less hiss, more of a low roll, like a waterfall heard from far away. It loops for as long as the tab is open, with no account and no advert before it starts.
Ten minutes of audio, played from our own servers rather than a video site, so nothing follows it and nothing is recommended to you afterwards. Licensed for commercial use, with the proof written down track by track.
White noise carries the same energy at every frequency. Brown noise carries more energy at the low frequencies and less as they climb, and the drop is steep: roughly a halving of power each time the pitch doubles. That is the whole difference, and it is a fact about the shape of the sound, not a matter of taste.
The consequence is what people actually notice. The hiss that makes white noise tiring after an hour lives in the high frequencies, and in brown noise most of it is simply not there. What remains is closer to rain on a roof, a distant motorway, the inside of an aeroplane.
So the trade is straightforward. Brown noise is easier to keep on for hours and better company for low, rumbling surroundings. It is less effective against voices and other high, sharp sounds, because it has less energy where those live. If the problem is a conversation through the wall, white noise covers it better.
Brown is not a better white. It is a different trade, and which one you want depends on what is making the noise.
And the honest caveat, which most pages skip: whether any of this helps you work is not settled and is not the same for everyone. Five minutes at low volume decides it better than any explanation.
Three answers to the same problem. The differences are real, and they point at different kinds of noise around you.
Equal energy across the whole range you can hear, high frequencies included. It is the brightest of the three, and the one that covers voices and sharp sounds best. Some people find it harsh after a while.
The same idea with the energy weighted towards the low end: deeper, closer to a waterfall heard from far away. Softer on the ears over long stretches, less effective against high-pitched sounds.
Not a flat spectrum but a recording. It moves a little, which some people prefer and others find distracting, and it carries a meaning the other two do not: it sounds like weather, not like a machine.
Three different sounds, one honest answer: which one works is not a fact about the sound, it is a fact about you and about the room you are in. They are all free here, so the cheapest way to find out is to try each for five minutes.
Some hours go nowhere in a perfectly quiet room. No sound fixes that. What tends to work instead is an appointment: a set time, and one other person on a video call who chose the same one, each doing their own work in silence. Rooms open every fifteen minutes, day and night.
Reading the clock…
Neither is better in general. Brown has more energy low down, so it is deeper and easier to keep on for hours but weaker against voices. White is flat across the range, so it covers sharp high sounds better and can feel harsh after a while.
It is free and needs no account, no card and no app. It plays on this page, and so do the other eight sounds.
For as long as you leave the tab open. The track is ten minutes and restarts by itself; inside WeFocusBuddy the restart also gets a short crossfade.
Not for the colour. The name comes from Brownian motion, the same random walk described by the botanist Robert Brown, because the sound is built by accumulating random steps rather than drawing them independently.
From our own servers, under a licence that allows commercial use, verified on the source page and written down with author, address and date.