"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." You probably know about white noise, or have seen one of those humming machines outside a therapist's ...

“White noise encompasses sound from the complete spectrum,” she said. “Brown noise, also known as red noise, or ‘brownian ...

“The sound machine can generate any of several types of sound, from nature [or] music,” Dr. Cory Portnuff, an audiologist at the University of Colorado Health’s Hearing and Balance Clinic, says. In ...

The “hum” is a reminder of our grandchildren’s childhoods. Bedtime meant sound machines to hum the noises and silence away. I ...