ISO

ISO/IEC JTC 1/SC 29/WG 6 - MPEG Audio coding

Codage des informations audio au format MPEG

General Information

Status

Active

Work Field

Information technology

Parent

ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information

Frequently Asked Questions

What is ISO/IEC JTC 1/SC 29/WG 6?

ISO/IEC JTC 1/SC 29/WG 6 is a Subcommittee within the International Organization for Standardization (ISO). It is named "MPEG Audio coding". This committee has published 13 standards.

What standards does ISO/IEC JTC 1/SC 29/WG 6 develop?

ISO/IEC JTC 1/SC 29/WG 6 develops ISO standards in the area of Information technology. Currently, there are 13 published standards from this subcommittee.

What is the International Organization for Standardization (ISO)?

The International Organization for Standardization (ISO) is an independent, non-governmental international organization that develops and publishes international standards. Founded in 1947 and headquartered in Geneva, Switzerland, ISO brings together experts from 170+ member countries to share knowledge and develop voluntary, consensus-based standards that support innovation and provide solutions to global challenges.

What is a Subcommittee in ISO?

A Subcommittee (SC) in ISO operates under a Technical Committee and focuses on a specific subset of the TC's scope. Subcommittees develop standards and technical specifications in their specialized area, reporting to their parent Technical Committee. They may also have working groups for detailed technical work.

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Page Size:

ISO

ISO/IEC 23090-4:2025(Main)

Information technology - Coded representation of immersive media - Part 4: MPEG-I immersive audio

This document specifies technology that supports the real-time interactive rendering of an immersive virtual or augmented reality audio presentation while permitting the user to have 6DoF movement in the audio scene. It defines metadata to support this rendering and a bitstream syntax that enables efficient storage and streaming of immersive audio content.

Standard
625 pages
English language
sale 15% off

ISO

ISO/IEC 23008-6:2025(Main)

Information technology - High efficiency coding and media delivery in heterogeneous environments - Part 6: 3D audio reference software

This document contains simulation software for the MPEG-H 3D audio standard as defined in ISO/IEC 23008-3.

Standard
4 pages
English language
sale 15% off

ISO

ISO/IEC 23003-4:2025(Main)

Information technology - MPEG audio technologies - Part 4: Dynamic range control

This document specifies technology for loudness and dynamic range control (DRC). It is applicable to most MPEG audio technologies. It offers flexible solutions to efficiently support the widespread demand for technologies such as loudness normalization and dynamic range compression for various playback scenarios.

Standard
246 pages
English language
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ISO

ISO/IEC 23003-6:2022(Main)

Information technology - MPEG audio technologies - Part 6: Unified speech and audio coding reference software

This document contains simulation software for the Unified speech and audio coding standard as defined in ISO/IEC 23003-3.

Standard
5 pages
English language
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ISO

ISO/IEC 23008-3:2022(Main)

Information technology - High efficiency coding and media delivery in heterogeneous environments - Part 3: 3D audio

This document specifies technology that supports the efficient transmission of immersive audio signals and flexible rendering for the playback of immersive audio in a wide variety of listening scenarios. These include home theatre setups with 3D loudspeaker configurations, 22.2 loudspeaker systems, automotive entertainment systems and playback over headphones connected to a tablet or smartphone.

Standard
867 pages
English language
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ISO

ISO/IEC 23003-4:2020/Amd 1:2022(Amendment)

Information technology - MPEG audio technologies - Part 4: Dynamic range control - Amendment 1: Side chain normalization

Standard
15 pages
English language
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ISO

ISO/IEC 23003-7:2022(Main)

Information technology - MPEG audio technologies - Part 7: Unified speech and audio coding conformance testing

This document specifies conformance criteria for both bitstreams and decoders compliant with the MPEG-D Unified speech and audio coding standard as defined in ISO/IEC 23003‑3. This is done to assist implementers and to ensure interoperability.

Standard
48 pages
English language
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ISO

ISO/IEC 23091-3:2018/Amd 1:2022(Amendment)

Information technology - Coding-independent code points - Part 3: Audio - Amendment 1: Headphone support

Standard
10 pages
English language
sale 15% off

ISO

ISO/IEC 23008-9:2022(Main)

Information technology - High efficiency coding and media delivery in heterogeneous environments - Part 9: 3D Audio conformance testing

This document specifies conformance criteria for both bitstreams and decoders compliant with the MPEG-H 3D audio standard as defined in ISO/IEC 23008-3. This is done to assist implementers and to ensure interoperability.