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.
By introducing an additional rear audio channel to the cinema, Dolby Digital Surround EX increases the realism of movies and brings the action behind you to life.
Dolby® Digital Surround EX™ adds a center rear audio channel to the Dolby Digital 5.1-channel cinema setup, giving filmmakers greater control over the placement of sounds in the theatre.
Rear-wall surround speakers located directly behind the audience reproduce the additional Surround EX channel, while speakers located on the side walls reproduce the Left and Right Surround channels.
For cinemas not equipped with rear-wall surround speakers, the traditional Left and Right Surround channels fill in. This allows content encoded in Surround EX to be played in any cinema equipped with 5.1-channel Dolby Digital decoding.
Surround EX soundtracks on DVD support 6.1-channel audio in the home, provided that the playback system features Dolby Digital EX and the speakers that are required for 6.1 channels of sound.
Sound surrounds you in real life, and Dolby Digital Surround EX ensures that it surrounds you at the movies, too. With the introduction of a rear surround audio channel—and new speakers on the back wall of the theatre—Surround EX takes the Dolby Digital 5.1-channel setup one step further.
The audio experiences we take for granted outside the theatre now sound true to life in the theatre. Imagine a scene in which one character pursues another on foot. In Dolby Digital Surround EX, you'll hear the footsteps of the pursuer approaching from behind, growing louder as the distance between the two characters diminishes. With each footstep, the dramatic tension rises. Moments like these define the cinema experience.
Special effects also benefit from Surround EX. The additional rear surround channel clarifies audio effects that pan from front to back—an asteroid that narrowly misses hitting your spaceship, for example—and gives sound designers more control over the placement of sound in the theatre.
You can enjoy the benefits of Dolby Digital Surround EX at home, too. The cinema versions of films released in Surround EX carry the extra surround audio channel in subsequent DVD releases as well as in 5.1-channel digital satellite and TV broadcasts.
If your home theater system has the speakers to support 6.1-channel playback and your A/V receiver or preamp/processor includes Dolby Digital EX decoding, you're ready to go.
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.
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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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