White Noise Generator

White, Pink and Brown Noise: What's the Difference?

• White noise has the same energy at every frequency, so it sounds like a bright hiss, close to an untuned radio.
• Pink noise has the same energy in every octave, so the high end is softer. It sits close to steady rain.
• Brown noise drops off twice as fast as pink, so most of what you hear is low rumble, like a distant waterfall.

How to Make Your Own Mix

1. Pick the preset closest to what you want.
2. Move the sliders. Each one sets the volume of one color.
3. Turn the tone down to take the hiss off the top.
4. Set a timer. The sound fades out over its last two minutes.

The Presets

• Brown noise: the deepest of the three, a low rumble.
• Pink noise: even from low to high, close to steady rain.
• White noise: bright and hissy, the best of the three at covering sharp, high sounds.
• Deep and soft: mostly brown with a little pink, with the tone turned well down.
• Fan: pink and brown together, close to a fan across the room.

Using It on the Go

On a bus or a train, use headphones and keep the volume low: the noise only needs to sit just above the sound around you. At a desk, a mix with more brown than white is easy to forget about. Your last mix is saved in this browser, so it's ready next time.

FAQs

Does the noise loop?

No. It's generated live in your browser, so there's no recording to repeat.

Which color should I start with?

Start with brown for something deep and soft, or white if you need to cover sharp sounds like voices.

Is anything recorded or sent?

No. The sound is made on your device and nothing leaves it. Your last mix is saved in your browser for next time.