Dolby Atmos is the name of a surround sound technology announced by Dolby Laboratories in April 2012, which was first utilized in Pixar’s Brave.
1. The first installation was in the Dolby Theater in Hollywood, California for the premiere of Brave in June 2012.
2. Throughout 2012 it will see a limited release of about 25 installations worldwide, with an increase to 1,000 locations in 2013. The format allows for an unlimited number of audio tracks to be distributed to theaters for optimal, dynamic rendering to loudspeakers based on the theater capabilities. The first generation cinema hardware, the "Dolby Atmos Cinema Processor" supports up to 128 discrete audio tracks and up to 64 unique speaker feeds.
3. The technology will initially be geared towards commercial cinema applications only, but may later be adapted to home cinema.
4. In addition to playing back a standard 5.1 or 7.1 mix using arrays, the system will give each loudspeaker its own unique feed, thereby enabling many new front, surround, and even ceiling-mounted height channels for the precise panning of select sounds such as a helicopter or rain.
See a complete list of Dolby Atmos movies.
Check out the review of the movie Brave. http://www.bbc.co.uk/news/technology-17840821