Sound for focus, calm, and sleep

Noise, brain waves, and ambience are synthesized in your browser.

Ready

Master volume 70%

Timer

Presets

A base layer that masks ambient sound.

Deep and rumbling. Comfortable for long focus sessions.

Volume 60%

Brightness (cuts highs) 80%

A slow rhythm you can tune into.

Each ear hears a slightly different tone; the beat forms in your head. Headphones required.

Beat frequency 10 Hz, alpha

Alpha: calm, relaxed attention.

Carrier pitch 200 Hz

Volume 40%

Steady rain with occasional drops.

Volume 60%

Slowly shifting gusts.

Volume 50%

Sparse calls and quiet air.

Volume 50%