Chroma Doze

Paul Marks

About this app

Now you can sleep soundly with the soothing algorithms of Fourier analysis. Just sketch your favorite spectrum, and listen to a generated stream of white noise (or more precisely, colored noise). Use it with headphones to drown out neighbors, or tweak the settings to erode eardrums and frighten small children.

Notable features:
- No ads or weird permissions
- Doesn't just play a looped sample
- Relatively power-efficient
- Runs in the background
- Save your favorite sounds in the Memory list
- Contains math
- Open Source / Free Software (GPLv3 license)

Ratings and reviews

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.

Very good. Has a save function, stable over long periods of time, true random noise (or at least not an obvious repeating clip), and the filtering sounds very good. Many applications of this kind get all of those wrong. At the time of writing, this one is perfect and a must-have.

I have been using this app for a few years now, I love being able to adjust the frequencies to make the perfect noise. It's become part of my nightly bedtime routine to help fill silences with sounds like waves or can noise. Great job Paul!!