ChromaDoze - sleep white noise

Paul Marks

About this app

Tired of the same looping track? With ChromaDoze, you create an infinite stream of custom-colored noise. Simply draw the sound you want to hear.

This app follows a simple user-first philosophy:
- Self-contained: Built without internet permission, runs privately anywhere.
- Stable interface: I avoid unnecessary changes, so you don't have to relearn the app.
- Battery-friendly: Designed to be light on your phone's battery.
- Contains math: Infused with the soothing functions of Fourier analysis.
- Free and open source software: GPLv3 license

Made in 2010 and it still works! You wouldn't believe how often Android deprecates stuff.

Ratings and reviews

When a stand-alone noise machine isn't feasible for me, this has been my go-to app for years: rather than offering a bunch of canned (and, too-often, short-looped) sounds, Chroma Doze allows custom-shaped noise patterns to suit one's needs, which strikes me as ideal, since a one-size-fits-all approach hardly works for different situations and individuals. You might need to noodle around a bit to find the most-effective sound-masking effect, but the straightforward controls make this easy.

I should have rated this years ago. it's the only way I've found to make a custom white noise that sounds exactly like my Dohm fan machine. other apps have good white noise selections, but this one takes the cake for customizability and being open source! I just ran it overnight and it used 30 percent of my phone battery over 10 hours (playing to a Bluetooth speaker). Not bad.

The BEST basic white noise app out there! There are no looped sound recordings, just white noise. You can customize the sound hiss generated and save multiple presets - example: loud covering TV hiss, low 'wind noise', etc. If I could donate to support the Developer's other work, I would throw a few dollars their way in appreciation.

What's new

Changes since 4.3:
- Major rebranding! Chroma Doze is now ChromaDoze.
- Add a button to enable the 'stop button' notification. This had been broken since API 33.
- Make the UI narrower when Gesture Navigation grabs the left/right edges of the screen. The full-width UI is still available with 3-button Navigation.
- Add a "maximum" line, to prevent the aspect ratio from getting too narrow.
- Add a stop/pause media button handler, for improved compatibility with sleep timer apps.