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ISO/IEC 23003-3

Information technology — MPEG audio technologies — Part 3: Unified speech and audio coding

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Organization: ISO
Publication Date: 1 June 2020
Status: active
Page Count: 348
ICS Code (Coding of audio, video, multimedia and hypermedia information): 35.040.40
scope:

This document specifies a unified speech and audio codec which is capable of coding signals having an arbitrary mix of speech and audio content. The codec has a performance comparable to, or better than, the best known coding technology that might be tailored specifically to coding of either speech or general audio content. The codec supports single and multi-channel coding at high bitrates and provides perceptually transparent quality. At the same time, it enables very efficient coding at very low bitrates while retaining the full audio bandwidth.

This document incorporates several perceptually-based compression techniques developed in previous MPEG standards: perceptually shaped quantization noise, parametric coding of the upper spectrum region and parametric coding of the stereo sound stage. However, it combines these well-known perceptual techniques with a source coding technique: a model of sound production, specifically that of human speech.

Document History

ISO/IEC 23003-3
June 1, 2020
Information technology — MPEG audio technologies — Part 3: Unified speech and audio coding
This document specifies a unified speech and audio codec which is capable of coding signals having an arbitrary mix of speech and audio content. The codec has a performance comparable to, or better...
October 1, 2016
Information technology - MPEG audio technologies - Part 3: Unified speech and audio coding TECHNICAL CORRIGENDUM 3
A description is not available for this item.
August 1, 2016
Information technology - MPEG audio technologies - Part 3: Unified speech and audio coding AMENDMENT 3: Support of MPEG-D DRC, audio pre-roll and immediate playout frame
A description is not available for this item.
September 1, 2015
Information technology - MPEG audio technologies - Part 3: Unified speech and audio coding TECHNICAL CORRIGENDUM 4
A description is not available for this item.
July 1, 2015
Information technology - MPEG audio technologiest Part 3: Unified speech and audio coding AMENDMENT 1: Conformance TECHNICAL CORRIGENDUM 1
A description is not available for this item.
April 1, 2015
Information technology - MPEG audio technologies Part 3: Unified speech and audio coding AMENDMENT 2: Reference software TECHNICAL CORRIGENDUM 1
A description is not available for this item.
April 1, 2015
Information technology - MPEG audio technologies - Part 3: Unified speech and audio coding TECHNICAL CORRIGENDUM 3
A description is not available for this item.
December 1, 2014
Information technology - MPEG audio technologies - Part 3: Unified speech and audio coding TECHNICAL CORRIGENDUM 3
A description is not available for this item.
March 15, 2014
Information technology - MPEG audio technologies - Part 3: Unified speech and audio coding AMENDMENT 1: Conformance
A description is not available for this item.
September 1, 2013
Information technology - MPEG audio technologies - Part 3: Unified speech and audio coding TECHNICAL CORRIGENDUM 2
A description is not available for this item.
September 1, 2012
Information technology - MPEG audio technologies - Part 3: Unified speech and audio coding TECHNICAL CORRIGENDUM 1
A description is not available for this item.
April 1, 2012
Information technology - MPEG audio technologies - Part 3: Unified speech and audio coding
This part of ISO/IEC 23003 specifies a unfied speech and audio codec which is capable of coding signals having an arbitrary mix of speech and audio content. The codec has a performance comparable to...

References

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