Noise Generators

Pink Noise Generator

Balanced ambient sound that mimics nature. Proven to enhance deep sleep and memory consolidation.

What Is Pink Noise?

Pink noise reduces energy at higher frequencies, creating a deeper, more balanced sound than white noise. It sounds like steady rain, a distant waterfall, or wind through leaves. Many researchers consider pink noise the most "natural" noise color because it matches the frequency distribution found in many natural phenomena.

Pink Noise for Deep Sleep

Pink noise has the strongest scientific evidence for sleep enhancement. A landmark 2017 study in Frontiers in Human Neuroscience found that pink noise synchronized with slow-wave brain activity, increasing deep sleep by 23% and improving memory recall by 26% the next day. Unlike white noise, which just masks sounds, pink noise may actively enhance sleep quality.

Pink Noise vs Brown Noise

Pink noise is balanced — it reduces high frequencies gently, sounding like steady rain. Brown noise goes further, heavily emphasizing low frequencies for a deep rumble. Pink noise is better studied for sleep enhancement, while brown noise is trending for ADHD and focus. Both are available in Background Noises — try each to find your preference.

Frequently Asked Questions

Is pink noise better than white noise for sleep?
Research suggests yes. A 2017 Northwestern University study found pink noise increased deep sleep and improved memory recall, while white noise primarily works by masking disruptive sounds. Pink noise may actively enhance sleep quality rather than just protecting it.
What does pink noise sound like?
Pink noise sounds like steady rainfall, a gentle waterfall, or wind through trees. It's deeper and more balanced than the "static" quality of white noise, but not as rumbly as brown noise. Most people find it the most pleasant noise color for extended listening.

Related Sounds

Ready to try Pink Noise?

Pick a sound. Pick a length. Press play. Free on web, iOS & Android.