Why running water is so soothing
Flowing water combines a steady rush, which masks other sounds, with a constant play of little bubbles and gurgles that shift pitch all the time. That bright, busy texture covers human speech especially well, which is why fountains and water features are used in offices, clinics and gardens to give conversations privacy.
It also signals somewhere pleasant. In surveys of favorite sounds, running water ranks near the top, and many people associate it with being outdoors, near clean water and away from traffic.
How our stream is made
A soft base of filtered pink noise gives the steady flow. Over it, several narrow, resonant filters wander quickly and randomly between about 350 and 2,800 Hz, each opening and closing on its own schedule. Each one sounds like a little stream of bubbles changing pitch, and together they give the babbling quality of water tumbling over stones.
Water sound mixes
| Scene | How |
|---|---|
| Babbling brook (default) | Stream alone |
| Forest stream | Stream with [green noise](/green-noise/) and a little wind |
| River in the rain | Stream and rain |
| Waterfall | Stream with plenty of brown and pink noise |
| Quiet office | Quick mix: Block out speech |
Good for
- Studying and working in shared spaces, where speech is the main distraction. See white noise for studying.
- Tinnitus: a natural, changing sound that many people find easy to live with. See tinnitus relief sounds.
- Meditation and relaxing after work.
- Sleep, especially if you find steady noise monotonous.
Frequently asked questions
Are stream sounds good for sleep?
Yes for many people, especially those who find steady noise boring. Set the volume low, since running water is quite bright, or drag Tone toward Darker.
Why does running water mask voices so well?
Its bubbling energy falls in the same frequency range as speech and changes constantly, which makes nearby words much harder to pick out.
Does the stream sound loop?
No. The bubbles are generated randomly as they play, so the stream never repeats.