Listening to Shhhhh in the City - WSJ.com - 1 views
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john roach on 04 Feb 12"Some of the hottest tracks on digital playlists: sounds of an oscillating fan, a waterfall and crickets. White noise and other soothing sounds, once mainly played on machines to aid nighttime sleep, are increasingly helping make daytime hours more serene. When played through headphones, the sounds help people tune out chatty co-workers, pounding jackhammers and the dentist's drill. "