• Dolby Digital Plus

    A core format of Dolby Audio, Dolby Digital Plus raises the bar for surround sound on devices from smartphones to home theater, and in operating systems and browsers.

    Dolby Digital Plus Benefits

    • Up to 7.1 Discrete Channels of High-Fidelity Surround Sound

      Because Dolby Digital Plus™ (E-AC-3) is an advanced surround sound audio technology designed for evolving media, you get consistent cinema-style audio across your content.

    • Premium Mobile Audio Quality

      Dolby Audio™ adds depth and power for realistic sound through your headphones and device speakers. You'll hear clearly, even in loud and busy environments.

    • Built Into Windows 10 and Microsoft Edge

      Stream content through Microsoft® Edge on any Windows® 10 PC or tablet, with clear dialogue and greater detail.

    • The Sound of HDTV

      Dolby Digital Plus is based on core Dolby® Digital technologies, the established standard for cinema, broadcast, and home theater surround sound.

    • Full Interactive Support for Blu-ray BonusView and BD-Live

      Get the interactive BonusView™ and BD-Live™ features on Blu-ray Disc™. Hear streamed director's commentary, alternate dialogue, or alternative language soundtracks.

    • Ideal for Listening on the Go

      Scalable for uncompromised sound quality and faster downloads over constrained mobile bandwidths.

    Hear how Dolby Digital Plus enhances the flying-fish scene in Life of Pi.

    Dolby Digital Plus: Consistent Quality on Every Device

    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'll always get consistent audio quality.

    The Technology

    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.

    How It Works

    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.

    Compatibility with Current Equipment

    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.

    Dolby Digital Plus Products and Content

    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 a also 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.

    Amp Up Your Entertainment

    Discover how Dolby enhances home theater components, PC, tablets, smartphones, and content.

    Seize the Audio Opportunity

    IDC research shows that consumers aren't satisfied with their mobile device audio quality. Be among the first in market to meet this need.

    Dolby Digital

    Discover the industry standard for all US HD broadcasts and DVDs.

    Compare Dolby Digital Plus to Other Technologies

    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.

    Feature

    Dolby Digital Plus

    Dolby Digital

    Competing Technologies

    Dolby TrueHD

    7.1 Channels

    5.1 Channels

    Streaming/download support

    Limited

    Built into Windows 10 and Microsoft Edge browser

    Multiple BonusView support for Blu-ray

    Automatic stereo downmix

    Support for mobile networks

    Limited

    Scalable for bandwidth-constrained applications

    Compression

    Lossy

    Lossy

    Lossy

    Lossless

    Data rates supported: mono-multichannel

    32 kbps–6Mbps

    32–640 kbps

    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 multiple screens, devices, operating systems, and browsers.

    A Powerful and Flexible Multiscreen Solution

    • Ideal for Operating Systems and Browser Builds

      The Dolby Digital Plus™ decoder has been updated to give premium made-for-web content and apps the ability to deliver crisp and clear dialogue with dynamic range appropriate for built-in speakers and headphones.

    • Compatible with HTML5, Built Into Windows 10

      Content providers who are programming for the Microsoft Edge browser and Windows 10 operating system have an added advantage in creating storytelling with compelling audio.

    • Quality Entertainment Everywhere

      Dolby Digital Plus helps creators, operators, distributors, providers, and manufacturers provide a quality audio and entertainment experience to consumers at home and on-the-go.

    • Scalable Bit Rates and Adaptive Streaming

      Dolby Digital Plus 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.

    Metadata

    Dolby Digital Plus metadata gives you control over essential signal parameters, including the critical three Ds: dialogue normalization, dynamic range, and downmixing. See the Dolby Metadata page for complete information.

    Compatibility

    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.

  • Professionals and Dolby Digital Plus

    Dolby Digital Plus empowers content creators, developers, sound engineers, distributors, and device manufacturers to provide a cinema-like listening experience to audiences everywhere.

    Content Creation

    Dolby Digital Plus will help you tell your story the way you want, with the assurance that your audience will hear what you intended.

    Distribution

    Dolby Digital Plus facilitates efficient distribution to the widest range of devices for broadcasters, operators, and OTT providers.

    Device Manufacturers

    Manufacturers rely on Dolby Digital Plus so that their users can experience the full emotional range of their entertainment anywhere.