You can also find brown noise on most sleep sound apps. The energy of blue noise is mostly concentrated at the high-frequency end, with very few deep tones to balance it out. As such, blue noise ...

Brown noise plays low-frequency sounds and omits high-frequency sounds like white ... brown noise helped calm the mind and improved their sleep quality. If you ask the scientific community about ...

Here's what experts think about the sound and its potential benefits for people who have insomnia or sleep troubles.

Theta waves (4-7 Hz) are common in the lighter stages of sleep or the transition from waking to sleeping. Delta waves (0.5-4 Hz) signify a state of deep sleep. A binaural beat with a frequency ...

but which sounds are the best for lulling you to sleep? There are various noise colors and all have unique benefits. The two most popular colors are white and brown noise, and each has qualities ...