We are a globally recognized innovator of sound, image, and voice technologies for cinemas, home theaters, PCs, mobile devices, and games.
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The Dolby Theatre
The Magic Inside Dolby
The Dolby Institute
Dolby in the Cinema
Dolby works with your favorite filmmakers and movie theaters to create a multidimensional cinema experience.
Dolby Surround 7.1
Solutions for Distributors and Exhibitors
Dolby at Home
Transform your living room into a sophisticated home theater with amazing sound and true-to-life video quality.
Dolby Digital Plus
Home Theater Setup Guide
Speaker Setup Guide
Home Theater Products
Solutions for Broadcast Professionals
Dolby on the Go
Mobile devices with Dolby technologies dramatically improve your audio quality.
Drivers and Codecs
Solutions for Mobile and PC Professionals
Dolby at Work
Improve productivity by transforming the conference call into an in-person meeting experience with Dolby Voice and the Dolby Conference Phone.
Dolby Conference Phone
Partners and Professionals
Find Dolby solutions, services, and support that can help you create more engaging products, content, and entertainment experiences.
PC and Mobile
Dolby Digital Plus is an advanced surround sound audio technology that enables the Dolby Audio experience across home theaters, smartphones, operating systems, and browsers.
Provides consistent cinema-style audio across your content using an advanced surround sound audio technology designed for evolving media.
Enjoy the consistent, high-quality Dolby Audio™ experience across Apple® iOS 9.3, OS X®, and tvOS™.
Stream content through Microsoft® Edge on any Windows® 10 PC or tablet, with clear dialogue and greater detail.
Based on core Dolby® Digital technologies, the established standard for cinema, broadcast, and home theater surround sound.
Get the interactive BonusView™ and BD-Live™ features on Blu-ray Disc™, like director's commentary, alternate dialogue, or alternative language soundtracks.
Adds depth and power for clear, realistic sound through headphones and speakers using Dolby Audio, and provides faster downloads as well.
Hear how Dolby Digital Plus enhances the flying-fish scene in Life of Pi.
Enjoy vibrant, high-quality surround sound from all your favorite content with Dolby Digital Plus™. Whether you're watching movies, TV shows, online videos, or concerts, Dolby Digital Plus ensures that you always get consistent audio quality.
Dolby Digital Plus is an audio technology based on Dolby Digital 5.1, the established standard for cinema, broadcast, and home theater surround sound. It's part of a complete ecosystem that includes content creation, program distribution, device manufacture, and customer experience.
Based on both psychoacoustic and cognitive models of audio perception, Dolby Digital Plus delivers HD-quality audio for streaming, on-demand, and downloaded content by using some of our most advanced algorithms. Dolby Digital Plus makes it possible to store and transmit high-quality digital sound to deliver the best audio quality possible on many different kinds of devices.
Equipment with Dolby Digital Plus will unlock its full feature set, including 5.1- and 7.1-channel capability (depending on the program).
If your system includes only Dolby Digital, you'll still get 5.1-channel surround sound, with the highest-quality Dolby Digital signal possible—Dolby Digital Plus content is easily converted to a traditional Dolby Digital signal.
You can get the Dolby Digital Plus experience by purchasing home theater equipment, such as A/V receivers, Blu-ray™ players, or TVs with Dolby Digital Plus. It's available on PCs, tablets like the Amazon Fire, and on smartphones. Dolby Digital Plus is also a core format for Dolby Audio, built into Windows 10 and the new Microsoft Edge browser, available on PCs and the Surface™ tablet.
Look for content encoded with Dolby Digital Plus on Blu-ray Disc and on streaming platforms such as Netflix, Vudu, or Amazon Fire TV.
Get the best sound from your home theater when you find the optimum locations for your speakers.
Surround Sound Speaker Placement
Dolby Atmos® Speaker Placement
Discover how Dolby enhances home theater components, PC, tablets, smartphones, and content.
IDC research shows that consumers aren't satisfied with their mobile device audio quality. Be among the first in market to meet this need.
Read the Paper
Dolby Digital Plus is one of many technologies that deliver surround sound. But how does it compare to other technologies?
Dolby Digital Plus is the established standard for 5.1-channel surround sound on DVDs and HD broadcasts. It's part of the Blu-ray Disc standard, so you can experience the clearest multichannel surround sound from your entertainment. And it's built into Windows 10, giving you crisp, clear sound from Windows apps and through the Microsoft Edge browser.
Built into Windows 10 and Microsoft Edge browser
Multiple BonusView support for Blu-ray
Automatic stereo downmix
Support for mobile networks
Scalable for bandwidth-constrained applications
Data rates supported: mono-multichannel
Up to 18 Mbps
The Dolby Digital Plus codec (E-AC-3) delivers up to 7.1 discrete channels of crisp surround sound, clear dialogue, and improved detail to your products.
An updated decoder gives premium made-for-web content and apps the ability to deliver crisp, clear dialogue with dynamic range appropriate for built-in speakers and headphones.
Provides content providers who are programming for the Microsoft Edge browser and Windows 10 operating system with compelling audio for storytelling.
Helps creators, operators, distributors, providers, and manufacturers provide a quality audio and entertainment experience to consumers at home and on-the-go.
Supports bit rates from 32 kbps to 6 Mbps, including discrete 7.1-channel surround sound at 384 kbps. It also supports adaptive bit-rate streaming.
Dolby Digital Plus metadata gives you control over essential signal parameters, including dialogue normalization, dynamic range, and downmixing. See the Dolby Metadata page for complete information.
Dolby Digital Plus offers complete backward compatibility with any component equipped with Dolby Digital. Made-for-web applications using HTML5, MSE, and EME that support delivery of quality H.264 video can be complemented by this high-performance multichannel audio solution.
Dolby Digital Plus empowers content creators, developers, sound engineers, distributors, and device manufacturers to provide a cinema-like listening experience to audiences everywhere.
Dolby Digital Plus will help you tell your story the way you want, with the assurance that your audience will hear what you intended.
Dolby Digital Plus facilitates efficient distribution to the widest range of devices for broadcasters, operators, and OTT providers.
Manufacturers rely on Dolby Digital Plus so that their users can experience the full emotional range of their entertainment anywhere.
Log in to the Dolby Customer portal to find partner tools and documents.
Apply for a license to include Dolby technologies in your products.
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