CAN/CSA-ISO/IEC 14496-3-10(R2015)
1.1 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.
SDO:
CSA
Language:
English
ICS Codes:
35.040
Status:
Withdrawn
Publish date:
2010-11-30
Standard Number:
CAN/CSA-ISO/IEC 14496-3-10(R2015)