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  • ISO/IEC 23003-1:2007

    Current The latest, up-to-date edition.

    Information technology — MPEG audio technologies — Part 1: MPEG Surround

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

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    Published date:  29-01-2007

    Publisher:  International Organization for Standardization

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    ISO/IEC 23003-1:2007 (MPEG Surround) is efficient technology for multi-channel audio compression. Rather than performing a discrete coding of the individual audio input channels, MPEG Surround captures the spatial image of a multi-channel audio signal into a compact set of parameters that are used to synthesize a high quality multi-channel representation from a transmitted downmix signal. MPEG Surround extends traditional techniques for coding of two or more channels in a way that provides several significant advantages in terms of compression efficiency and user benefits. Firstly, it allows the transmission of multi-channel audio at bitrates, which so far have been used for the transmission of monophonic audio. Secondly, by its underlying structure, the multi-channel audio signal is transmitted in a backward compatible way, i.e. the technology can be used to upgrade existing distribution infrastructures for stereo or mono audio content (radio channels, Internet streaming, music downloads, etc.) towards the delivery of multi-channel audio while retaining full compatibility with existing receivers.

    Key features of MPEG Surround are:

    • Agnostic to the underlying compression scheme. MPEG Surround is flexible to extend virtually any audio compression scheme including PCM, towards multi-channel.
    • High quality binaural (virtual surround) representation on stereo headphones. Additionally, the binaural processing can be enabled in the MPEG Surround encoder, supporting virtual surround on legacy stereo playback devices.
    • The MPEG Surround generated stereo downmix can be rendered compatible to legacy matrix surround systems. In addition, MPEG Surround offers an "Enhanced Matrix Mode" which achieves a higher quality than competing surround sound technologies.
    • For the typical MPEG Surround decoding operation modes, a low power decoding variant is available.
    • Next to typical stereo to 5.1 channel operation, MPEG Surround is scalable to its number of input and output channels. Furthermore, upon decoding, the channel configuration can be matched to the reproduction capabilities.
    • The bit rate overhead for MPEG Surround is flexible, allowing scalability from low bitrate applications such as Internet radio to high quality applications such as digital TV broadcasting.

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    Committee ISO/IEC JTC 1/SC 29
    Document Type Standard
    Publisher International Organization for Standardization
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

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    08/30183229 DC : 0 BS ISO/IEC 23003-2 - INFORMATION TECHNOLOGY - MPEG AUDIO TECHNOLOGIES - PART 2: SPATIAL AUDIO OBJECT CODING (SAOC)
    CEA 861 : G2016 ERRATA 2017 A DTV PROFILE FOR UNCOMPRESSED HIGH SPEED DIGITAL INTERFACES
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    I.S. EN 60958-4-2:2016 DIGITAL AUDIO INTERFACE - PART 4-2: PROFESSIONAL APPLICATIONS - METADATA AND SUBCODE
    ISO/IEC 23008-3:2015 Information technology High efficiency coding and media delivery in heterogeneous environments Part 3: 3D audio
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    ISO/IEC TR 23009-3:2015 Information technology — Dynamic adaptive streaming over HTTP (DASH) — Part 3: Implementation guidelines
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    BS ISO/IEC 23008-3:2015 Information technology. High efficiency coding and media delivery in heterogeneous environments 3D audio
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    ISO/IEC 14496-3:2009 Information technology Coding of audio-visual objects Part 3: Audio
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    IEC 62766-2-1:2016 Consumer terminal function for access to IPTV and open internet multimedia services - Part 2-1: Media formats
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    EN 62481-2:2014 Digital living network alliance (DLNA) home networked device interoperability guidelines - Part 2: DLNA media formats

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO/IEC 14496-3:2009 Information technology Coding of audio-visual objects Part 3: Audio
    ISO/IEC 13818-7:2006 Information technology Generic coding of moving pictures and associated audio information Part 7: Advanced Audio Coding (AAC)
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