• Dolby Digital Plus

    • Dolby Digital Plus is an advanced surround sound audio technology that enables the Dolby Audio experience across home theaters, smartphones, operating systems, and browsers.

    • Dolby Digital Plus Benefits

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

        Provides consistent cinema-style audio across your content using an advanced surround sound audio technology designed for evolving media.

      • Supported Natively on the Latest Apple Devices

        Enjoy the consistent, high-quality Dolby Audio™ experience across Apple® iOS, macOS™, and tvOS™.

      • 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

        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™, like director's commentary, alternate dialogue, or alternative language soundtracks.

      • Premium Mobile Listening

        Adds depth and power for clear, realistic sound through headphones and speakers using Dolby Audio, and provides faster downloads as well.

    • Make sure to use Microsoft Edge™ or Safari 10 for macOS™ Sierra or above to hear this in Dolby Audio.

      Hear the difference when Dolby Audio switches on, making dialogue, detail, and music loud and clear.

      • 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 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 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.

      • Home Theater Setup Gutter Tout

        Speaker Setup Guide

        Get the best sound from your home theater when you find the optimum locations for your speakers.

        Speaker Setup Guide

        Surround Sound Speaker Placement

        Dolby Atmos® Speaker Placement

      • 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.

        Read the Paper

      • 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 your products.

    • A Powerful and Flexible Multiscreen Solution

      • Ideal for Operating Systems and Browser Builds

        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.

      • Compatible with HTML5, Built Into Windows 10

        Provides content providers who are programming for the Microsoft Edge browser and Windows 10 operating system with compelling audio for  storytelling.

      • Quality Entertainment Everywhere

        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

        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 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.

  • Customer Support

    Dolby Business Partners

    Log in to the Dolby Business Partners portal to find partner tools, warranties, and policies.

    Log in

    Licensing 

    Apply for a license to include Dolby technologies in your products.

    Get Licensed

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Dolby and the double-D symbol are registered trademarks of Dolby Laboratories. All other trademarks remain the property of their respective owners. © 2018 Dolby Laboratories, Inc. All rights reserved.