Brown noise app
A brown noise app for better sleep and a calmer audio environment
Calma is a beautifully simple brown noise app that helps you create a softer, more controlled sound environment for sleep, relaxation and everyday calm. Whether you are searching for the best sound to go to sleep to or the best noise for studying, use Calma to support bedtime routines, reduce distracting noise and build a more peaceful atmosphere around you.
Support better sleep
Brown noise can help create a more stable sound background for bedtime and a gentler transition into sleep.
Reduce distracting noise
Use a controlled audio layer to soften sudden sounds and create a calmer environment around you.
Keep it simple and calm
Calma is designed to feel elegant, clear and emotionally light, helping brown noise feel like part of a daily routine instead of a technical tool.
App preview
See the calming experience inside Calma
Guides & Knowledge
Learn more about brown noise
Brown vs White vs Pink Noise
Learn the key differences between noise colors and which is best for sleep, focus, or ADHD.
Best Color Noise for ADHD
Why brown noise is the most popular choice for ADHD focus and concentration.
Best Sounds for Sleep
Explore why brown noise is one of the top-rated sounds for deep, uninterrupted sleep.
Best Sounds for Studying
How to use brown noise as a study aid for deeper concentration.
FAQ
Brown noise app FAQ
What is a brown noise app?
A brown noise app generates deep, low-frequency sound similar to a strong waterfall, distant thunder, or a powerful fan. It's called "brown" noise after Robert Brown (Brownian motion), not the color. Brown noise emphasizes lower frequencies much more than white noise, making it sound deeper and more soothing.
Can brown noise help with sleep?
Many people use brown noise to make bedtime feel calmer and reduce the impact of distracting sounds in the environment.
Is Calma only for brown noise?
No. Calma also supports white noise, pink noise, nature sounds, sleep soundscapes and focus-oriented audio mixes, so you can shape the experience to your needs.
Does brown noise help with ADHD?
Yes — brown noise has become one of the most popular tools in the ADHD community. Its deep, consistent frequency provides enough background stimulation to satisfy the brain's need for input, without being distracting. This helps reduce the urge to seek out other stimuli (like checking your phone or switching tasks).
Brown noise vs white noise — what's the difference?
White noise contains all frequencies at equal volume, producing a bright "static" or "hiss" sound. Brown noise rolls off steeply at higher frequencies, sounding much deeper and warmer — like the rumble of a waterfall or heavy rain on a window. Most adults prefer brown noise for sleep because it's less harsh on the ears during long exposure.
Try Calma for sleep and everyday calm
Download Calma on Google Play and create a calmer sound environment with brown noise and personalized soundscapes.