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NEN-ISO/IEC 14496-3

Information technology - Coding of audio-visual objects - Part 3: Audio

inactive
Organization: NEN
Publication Date: 1 September 2009
Status: inactive
Page Count: 1,418
ICS Code (Coding of audio, video, multimedia and hypermedia information): 35.040.40
scope:

This part of ISO/IEC 14496 (MPEG-4 Audio) is a new kind of audio standard that 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. By standardizing individually sophisticated coding tools as well as a novel, flexible framework for audio synchronization, mixing, and downloaded post-production, the developers of the MPEG-4 Audio standard have created new technology for a new, interactive world of digital audio. MPEG-4, unlike previous audio standards created by ISO/IEC and other groups, does not target a single application such as real-time telephony or high-quality audio compression. Rather, MPEG-4 Audio is a standard that applies to every application requiring the use of advanced sound compression, synthesis, manipulation, or playback. The subparts that follow specify the state-of-the-art coding tools in several domains; however, MPEG-4 Audio is more than just the sum of its parts. As the tools described here are integrated with the rest of the MPEG-4 standard, exciting new possibilities for object-based audio coding, interactive presentation, dynamic soundtracks, and other sorts of new media, are enabled. Since a single set of tools is used to cover the needs of a broad range of applications, interoperability is a natural feature of systems that depend on the MPEG-4 Audio standard. A system that uses a particular coder - for example, a real-time voice communication system making use of the MPEG-4 speech coding toolset - can easily share data and development tools with other systems, even in different domains, that use the same tool - for example, a voicemail indexing and retrieval system making use of MPEG-4 speech coding. A multimedia terminal that can decode the Natural Audio Profile of MPEG-4 Audio has audio capabilities that cover the entire spectrum of audio functionality available today and into the future.

Document History

December 1, 2019
Information technology - Coding of audio-visual objects - Part 3: Audio
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...
April 1, 2017
Information technology - Coding of audio-visual objects - Part 3: Audio - Amendment 6: Profiles, levels and downmixing method for 22.2 channel programs
A description is not available for this item.
December 1, 2015
Information technology - Coding of audio-visual objects - Part 3: Audio
A description is not available for this item.
August 1, 2015
Information technology - Coding of audio-visual objects - Part 3: Audio
A description is not available for this item.
August 1, 2015
Information technology - Coding of audio-visual objects - Part 3: Audio - Amendment 5: Support for Dynamic Range Control, New Levels for ALS Simple Profile, and Audio Synchronization
A description is not available for this item.
April 1, 2015
Information technology - Coding of audio-visual objects - Part 3: Audio
A description is not available for this item.
Information technology - Coding of audio-visual objects - Part 3: Audio - Amendment 4: New levels for AAC profiles
A description is not available for this item.
December 1, 2013
Information technology - Coding of audio-visual objects - Part 3: Audio - Amendment 4: New levels for AAC profiles
A description is not available for this item.
November 1, 2012
Information technology - Coding of audio-visual objects - Part 3: Audio
A description is not available for this item.
August 1, 2012
Information technology - Coding of audio-visual objects - Part 3: Audio
A description is not available for this item.
August 1, 2012
Information technology - Coding of audio-visual objects - Part 3: Audio - Amendment 3: Transport of unified speech and audio coding (USAC)
A description is not available for this item.
October 1, 2011
Information technology - Coding of audio-visual objects - Part 3: Audio
A description is not available for this item.
October 1, 2010
Information technology - Coding of audio-visual objects - Part 3: Audio
A description is not available for this item.
January 1, 2010
Information technology - Coding of audio-visual objects - Part 3: Audio
A description is not available for this item.
December 1, 2009
Information technology - Coding of audio-visual objects - Part 3: Audio - Amendment 1: HD-AAC profile and MPEG Surround signaling
A description is not available for this item.
NEN-ISO/IEC 14496-3
September 1, 2009
Information technology - Coding of audio-visual objects - Part 3: Audio
This part of ISO/IEC 14496 (MPEG-4 Audio) is a new kind of audio standard that integrates many different types of audio coding: natural sound with synthetic sound, low bitrate delivery with...
January 1, 2009
Information technology - Coding of audio-visual objects - Part 3: Audio - Amendment 2: Audio Lossless Coding (ALS), new audio profiles and BSAC extensions
A description is not available for this item.
January 1, 2009
Information technology - Coding of audio-visual objects - Part 3: Audio
A description is not available for this item.
January 1, 2009
Information technology - Coding of audio-visual objects - Part 3: Audio - Amendment 3: Scalable Lossless Coding (SLS)
A description is not available for this item.
January 1, 2009
Information technology - Coding of audio-visual objects - Part 3: Audio - Amendment 2: Audio Lossless Coding (ALS), new audio profiles and BSAC extensions
A description is not available for this item.
July 1, 2008
Information technology - Coding of audio-visual objects - Part 3: Audio - Amendment 9: Enhanced low delay AAC
A description is not available for this item.
April 1, 2008
Information technology - Coding of audio-visual objects - Part 3: Audio
A description is not available for this item.
April 1, 2008
Information technology - Coding of audio-visual objects - Part 3: Audio
A description is not available for this item.
April 1, 2008
Information technology - Coding of audio-visual objects - Part 3: Audio
A description is not available for this item.
April 1, 2008
Information technology - Coding of audio-visual objects - Part 3: Audio
A description is not available for this item.
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