Press Start or Space · sound plays only after you start it
Pink Noise Generator
Quick answer
What is the Pink Noise Generator?
A pink noise generator plays sound whose power drops evenly with each octave, so it sounds balanced and softer than white noise, like steady rain. It is used for sleep, relaxation and studying, and audio engineers use pink noise to check speaker balance.
Key features
- Real pink noise generated in your browser
- Tone filter, volume in decibels and sleep timer
- Live waveform or spectrum display
- Keyboard control: Space to play or pause
Why use it
- Natural, rain-like sound that is easy to sleep to
- Useful reference signal for speaker checks
- Free and ad-light
Built and tested by Whitson Rao
About the Pink Noise Generator
A pink noise generator that sounds like steady rain or wind. Pink noise has equal energy in every octave, so it is fuller and less hissy than white noise but brighter than brown noise. Press Start, adjust the volume in decibels, shape it with a filter and set a sleep timer. Switch to the White Noise Generator or Brown Noise Generator right from the stage.
How to use the Pink Noise Generator
Press Start. Audio never plays on its own.
Set the volume in decibels.
Use the low-pass or high-pass filter and cutoff slider to fine-tune the tone.
Choose an optional sleep timer and a visual.
Press F or click Fullscreen to fill your display, and press Esc to exit.
Common uses
Sleep
A popular, less harsh alternative to white noise for the whole night.
Studying
A balanced background sound for long reading sessions.
Speaker check
Pink noise is the standard signal for a rough listen to speaker balance.
Calm spaces
Soft background sound for waiting rooms and studios.
Frequently asked questions
What is pink noise?
Pink noise has equal energy per octave, so each step up in pitch is a little quieter than in white noise. It sounds more natural, like rain.
Is pink noise good for sleep?
Many people find it relaxing, and some small studies suggest it may support deep sleep, but results vary from person to person.
Can I use it to test speakers?
It is fine for a quick listening check. For accurate room measurements use measurement software and a calibrated microphone.