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Reference ISO/IEC 23003-3 ed1.0 withdrawn corrigendum
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Title Information technology -- MPEG audio technologies -- Part 3: Unified speech and audio coding
Publication date 2012-03-23
Format, price
(Swiss francs)
and language
198.- 278 pages
198.- 5793 Kb
 
Abstract ISO/IEC 23003-3:2012 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.

ISO/IEC 23003-3:2012 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.
Technical Committee JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information  RSS
ICS Codes
35.040 Character sets and information coding
*Including coding of audio, picture, multimedia and hypermedia information, IT security techniques, encryption, bar coding, electronic signatures, etc.
 
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