White Noise With a Sleep Timer
This page opens with white noise and an eight-hour stop timer. Press Play when you want the audio to begin. Change the timer, colour or level for this visit.
of 8 h
Silent: playback is stopped. Press play to start white noise at 18 per cent.
- Equal energy in every hertz, so the spectrum is flat: the brightest of the three, a hiss.
- Silent. No audio node exists until you press play.
- 1.5 second buffers are generated and scheduled end to end, so the sound never comes round again.
- Playback fades out, then the audio nodes are disconnected.
Accuracy. The noise is generated in the browser from a random source, so it never loops and nothing is downloaded. White is equal energy per hertz, pink falls about 3 dB per octave and brown about 6, which is why brown sounds deeper. This is a sound generator: it makes no claim about sleep, concentration, tinnitus or any health effect.
Common questions
- Can I play white noise while going to sleep or studying?
- You can play it as background sound, choose a colour and set a stop timer. The sleep preset starts with an eight-hour timer; it does not start sound automatically. This is audio playback, with no claim about sleep, concentration, tinnitus or a health effect.
- Does it work on an iPhone, Android, Mac or Windows computer?
- It uses your browser's Web Audio engine. Press Play to allow sound; a setting that blocks browser audio can prevent playback. A mobile browser can suspend audio when the screen locks or the tab goes into the background. Keep this page open and visible for dependable operation; this page cannot override device power policies.
The noise is generated in the browser from a random source, so it never loops and nothing is downloaded. White is equal energy per hertz, pink falls about 3 dB per octave and brown about 6, which is why brown sounds deeper. This is a sound generator: it makes no claim about sleep, concentration, tinnitus or any health effect.