• Dolby Media Generator

    Dolby Media Generator software brings aggregators and distributors reliable delivery of mobile and OTT content while lowering storage requirements, reducing download times, and boosting playback quality.

    Balancing the Competing Factors in Quality Content Delivery

    Mobile users demand no-compromise on-the-go video and audio comparable to what they get from home entertainment systems and high-end Internet content portals. Delivering this experience requires balancing bandwidth requirements, delivery speeds, and handset capabilities. Dolby® Media Generator provides this balance.

    Faster and More Reliable

    Dolby Media Generator streamlines content files for greater efficiency in delivery for mobile and OTT without diminishing file quality. Our engineers helped revolutionize the cinema and home theater experience, and we've brought the same know-how to the world-class encoding tools of Dolby Media Generator.

    Dolby Media Generator also automatically validates and, if necessary, repairs files. This minimizes the need for quality control and ensures a better and more consistent playback experience.

    The Advantages of Metadata

    Dolby Media Generator produces a single standards-based file compatible with almost any mobile device. You don't have to create multiple variants from the master to ensure compatibility.

    Key to this simplicity is the Dolby metadata embedded in the file. Dolby Media Generator adds five metadata sections to all processed files, ranging from business information for better reporting to liner notes, album art, and other information that increases consumer engagement. Metadata can even be used to control the settings and playback experience on devices.

    Dolby for the Mobile Industry

    Dolby offers you the complete solution for PC and mobile audio. Dolby Digital Plus™ makes it easier for you to deliver quality surround sound for any device, anywhere.

    • Adaptive Bitrate Streaming Content Creation

      Ability to create content in various streaming formats: HTTP Live Streaming (HLS), MPEG Dynamic Adaptive Streaming over HTTP (MPEG-DASH), and Protected Interoperable File Format (PIFF)

    • UltraViolet Content Creation

      Ability to generate UltraViolet Common File Format (CFF) files

    • HE AAC by Dolby Laboratories Encoder

      Updated AAC, HE AAC, and HE AAC v2 encoder

    • Dolby Digital Plus Encoder

      Multichannel encoding to maximize the benefits of next-generation mobile devices

    • H.264 Video Encoding

      Complementary video encoding to offer high-quality video images at low data rates

    • Loudness Control and Limiting

      Ability to maximize audio levels to suit playback on a portable device

    • Automatic Validation and Repair of Source Media

      Optimizes quality control

    • Standards-Based MPEG 4 Outputs

      MPEG-4 Visual Advanced Simple Profile per ISO/IEC 14496-2

    Dolby Media Generator Specifications

    Operating Systems

    • Windows® (32-bit or 64-bit): (32-bit or 64-bit): Windows Server® 2003 R2 or Windows Server® 2008, Windows 7, Windows 8
    • Linux®/Unix® (32-bit or 64-bit): Fedora®, Ubuntu®, Debian®, CentOS

    Dolby Media Generator Output

    • File containers: MP4, M4A, 3GP, DoCoMo® Mobile MP4
    • Streaming content containers: HTTP Live Streaming (HLS), MPEG Dynamic Adaptive Streaming over HTTP (MPEG-DASH) 
    • UltraViolet™ content output: Common File Format (CFF), Protected Interoperable File Format (PIFF)

    Output Stream

    • AAC per ISO/IEC 13818-7:2003 and ETSI 3GPP TS 26.234, Release 4
    • HE AAC per ETSI 3GPP TS 26.234, Release 6
    • HE AAC v2 per ISO/IEC 14496-3 and ETSI 3GPP TS 26.234, Release 6
    • WAV
    • HE AAC by Dolby Laboratories
    • Dolby Digital Plus (ATSC A/52B Annex E, ETSI TS 102 366)
    • Dolby Digital
    • PCM
    • TTML subtitles (text and image)
    • PlayReady® DRM

    Video Streams

    • H.263 baseline and H.263 Profile 3 level 45 per ITU-T Recommendation
    • H.263 and ETSI 3GPP TS 26.234, Release 4
    • MPEG-4 Visual Advanced Simple Profile per ISO/IEC 14496-2
    • AVC/H.264 per ISO/IEC 14496-10/ITU-T Recommendation H.264

    Metadata Within File Container

    • XML metadata sections in UUID boxes
    • ID32 box containing ID3v2 tag
    • Apple® iTunes® metadata boxes
    • 3GP Asset Data
    • Conversion between metadata formats
    • Timed text track support for lyrics or subtitles

    File Handling

    • Batch processing—process all media files in a folder
    • Audio pass-through
    • Video pass-through

    Channel Configuration Options

    One-Channel Configuration

    • Mono-to-stereo conversion

    Two-Channel Configuration

    • Stereo upmixing
    • Stereo upmixing and Dolby Pro Logic® II encoding
    • Dual-mono detection
    • Matrix detection
    • Stereo downmix to mono

    Multichannel Configuration

    • Upmixing to 5.1
    • Downmixing to Pro Logic II
    • Surround channel phase detection

    Loudness Processing

    • Analysis and adjustment of dialnorm
    • Adjustable input gain
    • Fully flexible limiter

    Dolby Media Generator Analysis and Metadata

    • Average loudness
    • Dialogue ratio
    • Channel content
    • Two-channel mono content
    • Sound imaging width perception
    • Frequency content
    • Graphic EQ
    • Mobile surround

    Validation and Repair

    Audio

    • Detection of missing audio
    • Detection and repair of DC offset
    • Detection and repair of phase differences between Left and Right channels
    • Detection of incorrect channel count
    • Encoder bit rate and/or version incompatibiliyu with Pro Logic II
    • Detection of audio with low bass content
    • Detection of low-bandwidth audio

    Video

    • Detects missing video
    • Resizing of video frame
    • Cropping and padding of video frame
    • Automatic correction of pixel aspect ratio
    • Frame rate conversion
    • Control over brightness, contrast, and RGB balance
    • Multipass H.264 encoding with three rate-control algorithms
    • Baseline, main, extended high H.264 profiles supported
    • Addition of watermark to encoded video

    Note: Dolby Media Generator does not include HE AAC by Dolby Laboratories or Dolby Digital Plus decoders. These can be found on select consumer devices. Contact us for further information and updates on performance.

  • Customer Support

    Get Support

    Log in to the Dolby Customer portal for help with your customer or partner account, or to read warranty and maintenance policies.

    Dolby Customer Portal

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