How to Get your Child to Sleep Faster: white noise

White noise is a constant, usually high-pitched sound that can help you fall asleep, block out background noise, or focus on a task. This free white noise generator uses pink noise, which is a mix of all frequencies in the audible spectrum to lull you to sleep. It's also called "brown noise," "pink noise," and "1/f noise." This sound can be used for sound masking, sound therapy, sound enrichment, relaxation, and even for tinnitus sufferers. You can adjust the volume, bass and treble.