We are a globally recognized innovator of sound, image, and voice technologies for cinemas, home theaters, PCs, mobile devices, and games.
The Magic Inside Dolby
The Dolby Institute
The Dolby Theatre
Working at Dolby
Learn how we support up-and-coming filmmakers during the creative process.
Get an inside look at how our team of scientists and engineers creates the magic behind your entertainment experiences.
Dolby in the Cinema
Be captivated by your favorite movies in Dolby sound.
Dolby Surround 7.1
Dolby Atmos Cinema Sound
Dolby Atmos propels you into the story with powerful, all-around sound.
Find a Movie Theatre
See your favorite movies in Dolby Atmos, Dolby Surround 7.1, or Dolby 3D.
Dolby at Home
Transform your living room into a sophisticated home theater with amazing sound and true-to-life video quality.
The Evolution of Surround Sound
Dolby led the evolution of stereo sound into surround and beyond.
Dolby Vision captures the story with incredibly bright colors, ultra-dark blacks, and vivid hues.
Dolby on the Go
Stellar sound quality. All of your favorite content. Wherever life takes you.
Amazon and Dolby Are Changing Mobile
Learn how Dolby and Amazon are changing the way you enjoy mobile entertainment.
Rediscover the Magic of Life of Pi
Hear the difference Dolby audio makes when you watch Life of Pi on your mobile device.
Dolby at Work
Improve productivity by transforming the conference call into an in-person meeting experience with Dolby Voice and the Dolby Voice Conference Phone.
Dolby Voice Conference Phone
Feel like you're right there in the room with the stunning clarity of Dolby Voice.
We've reinvented the conference phone to deliver lifelike clarity and conversational ease.
Partners and Professionals
Find Dolby solutions, services, and support that can help you create more engaging products, content, and entertainment experiences.
PC and Mobile
Apply for a license to include Dolby technologies in your products.
Log in to the Dolby Customer portal to find partner tools, documents, and policies.
Find warranty and policy information for Dolby hardware and software.
Dolby Digital EX introduces an additional rear audio channel to the 5.1 home theater setup for a surround sound experience that's closer to real life.
Dolby® Digital EX represents the home theater version of Dolby Digital Surround EX™, a cinema technology that takes advantage of new speakers on the back wall of the theatre to produce sound directly behind you.
The additional center rear audio channel allows filmmakers greater control over the placement of sounds in the listening environment.
For home theaters not equipped for Dolby Digital EX playback, no sonic information is lost. This means content encoded in Dolby Digital EX can be played in any 5.1-channel Dolby Digital setting.
The arrival of Dolby Digital Surround EX to cinemas ushered in a new level of surround sound for the movies. Dolby Digital EX lets you experience this same 6.1-channel audio in your home theater.
Both technologies take the Dolby Digital 5.1-channel setup one step further with an additional channel behind the audience. This rear surround channel provides extra dimensional detail and clarifies audio effects that pan from front to back. The net result is movie audio that more closely matches our experience of sound in the real world.
Films released in Dolby Digital Surround EX (the cinema version) carry the encoded extra surround channel in their subsequent DVD releases, as well as onto 5.1-channel digital satellite and TV broadcasts. If your home theater system has an A/V receiver or preamp/processor with Dolby Digital EX decoding, plus speakers to support 6.1 or 7.1 playback, you can enjoy these cinema soundtracks as they were meant to be heard.
Current Dolby Digital EX soundtracks contain a digital flag that automatically activates the Dolby Digital EX decoding in your receiver or preamp/processor. For titles released prior to late 2001, however, you need to turn on the Dolby Digital EX decoding manually.
Enjoy your next movie the way the director intended—in Dolby sound.
Find a Theatre
Log in to the Dolby Customer portal for help with your customer or partner account.
More Like This
Lose yourself in a captivating cinematic experience when you watch movies at a Dolby theatre.
Movie Theatre Locator: Find a Theatre with Dolby Sound
Find a theatre near you equipped with Dolby Atmos, Dolby Surround 7.1, or Dolby 3D.
Whether you make, distribute, or exhibit movies, Dolby innovations help you deliver thrilling experiences.
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