New sound technology enhances 3D movie experience
Dolby Atmos is the new sound system that's being introduced for 3D movies, expanding the existing surround sound system movie theaters already have. The system was used in the Oscar-nominated films, "Gravity" and "The Hobbit: Desolation of the Smaug." Kara Tsuboi goes behind the scenes at Dolby Labs to find out how it works.