We asked experts how you should be using different kinds of white noise to block out the world and actually get a good ...

Ok I'm still awake - white, brown, green or pink? To sum up, all of these sounds help drown out background noise, they have different frequencies, and when it comes to choosing which one is best ...

There’s a growing buzz around pink noise, brown noise, green noise — a rainbow of soothing sounds — and their theoretical effects on sleep, concentration and the relaxation response.

And people who like white, pink, or Brown noise will find a machine that works for them and their needs. Most sound machines—such as a sleep fan—emit only one sleep noise.

Brown noise, which sounds like a low rumble or an ocean, lowers the higher frequencies even more. Apps like Noisli can generate these sounds for you to keep you focused while you work.

Where pink and brown noise decreases by dB, blue noise is increased by three decibels per octave, Dr. Hafeez says, which makes higher frequencies (and higher-pitched noises) more prominent.

Pink noise is a constant sound in the background. ... Besides white, pink, and brown noise, there are other color noises that aren’t related to sleep. These include: Blue noise.