Standard: MPEG-4
Part: 3

This document integrates many different types of audio coding: natural sound with synthetic sound, low bitrate delivery with high-quality delivery, speech with music, complex soundtracks with simple ones, and traditional content with interactive and virtual-reality content. This document standardizes individually sophisticated coding tools to provide a novel, flexible framework for audio synchronization, mixing, and downloaded post-production. This document does not target a single application such as real-time telephony or high-quality audio compression. Rather, it applies to every application requiring the use of advanced sound compression, synthesis, manipulation, or playback. This document specifies the state-of-the-art coding tools in several domains. As the tools it defines are integrated with the rest of the ISO/IEC 14496 series, exciting new possibilities for object-based audio coding, interactive presentation, dynamic soundtracks, and other sorts of new media, are enabled.

Editions

Edition - 1: EdO/IEC 14496-3:2005/Amd.6 14496-23:2008

Publication Year: 0
Status: published
Motivations:
Objectives:

Edition - 1: EdO/IEC 14496-3:2005/Amd.7 TR 14496-24:2008

Publication Year: 0
Status: published
Motivations:
Objectives:

Edition - 4: EdO/IEC 14496-3:2009 [Edition 4]

Publication Year: 0
Status: published
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Edition - 5: ISO/IEC 14496-3:2019 [Edition 5] Audio

Publication Year: 0
Status: published
Motivations: Consolitation of amendments
Objectives:

Edition - 5: Audio

Publication Year: 0
Status: released
Motivations: ISO requires new edition when there is more than 2 of AMD, COR
Objectives: Many AMD and COR are rolled up into new edition

Whitepapers

Publication date	Title
2015-02-24	White Paper on AAC-ELD Family of Standards for High Quality Communication Services
2014-07-11	White paper on AAC Transport Formats
2019-07-12	White paper on MPEG AAC Family of Codecs

Meeting documents

MPEG 152

Publication date	Title
2025-10-12	Text of DAM of ISO/IEC 14496-3:2019/AMD1, Media authenticity and immersive interchange format

MPEG 151

Publication date	Title
2025-07-06	Technologies under Consideration for ISO/IEC 14496-3:2019/CD AMD1

MPEG 130

Publication date	Title
2020-04-25	Preliminary Proposed WD on New Levels for MPEG-4 ALS Simple Profile for Supporting High-resolution Audio