MPEG-D

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MPEG-D is a group of standards for audio coding formally known as ISO/IEC 23003 - MPEG audio technologies, published since 2007. [1] [2] [3] [4]

MPEG-D consists of four parts:

See also

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MPEG Surround, also known as Spatial Audio Coding (SAC) is a lossy compression format for surround sound that provides a method for extending mono or stereo audio services to multi-channel audio in a backwards compatible fashion. The total bit rates used for the core and the MPEG Surround data are typically only slightly higher than the bit rates used for coding of the core. MPEG Surround adds a side-information stream to the core bit stream, containing spatial image data. Legacy stereo playback systems will ignore this side-information while players supporting MPEG Surround decoding will output the reconstructed multi-channel audio.

Structured Audio Orchestra Language (SAOL) is an imperative, MUSIC-N programming language designed for describing virtual instruments, processing digital audio, and applying sound effects. It was published as subpart 5 of MPEG-4 Part 3 in 1999.

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ISO/IEC JTC 1/SC 2 Coded character sets is a standardization subcommittee of the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), that develops and facilitates standards within the field of coded character sets. The international secretariat of ISO/IEC JTC 1/SC 2 is the Japanese Industrial Standards Committee (JISC), located in Japan. SC 2 is responsible for the development of the Universal Coded Character Set which is the international standard corresponding to the Unicode Standard.

ISO/IEC JTC 1/SC 29, entitled Coding of audio, picture, multimedia and hypermedia information, is a standardization subcommittee of the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It develops and facilitates international standards, technical reports, and technical specifications within the field of audio, picture, multimedia, and hypermedia information coding. The standards developed by SC 29 have been recognized by seven Emmy Awards.

MPEG-A is a group of standards for composing MPEG systems formally known as ISO/IEC 23000 - Multimedia Application Format, published since 2007.

References

  1. ↑ MPEG. "MPEG standards - Full list of standards developed or under development". chiariglione.org. Archived from the original on 2010-04-20. Retrieved 2010-02-09.
  2. ↑ MPEG. "Terms of Reference". chiariglione.org. Archived from the original on 2010-02-21. Retrieved 2010-02-09.
  3. ↑ "Working documents, MPEG-D (MPEG Audio Technologies)". MPEG. Archived from the original on 2010-02-21. Retrieved 2010-02-09.
  4. ↑ ISO/IEC JTC 1/SC 29 (2009-12-30). "Programme of Work (Allocated to SC 29/WG 11) - MPEG-D". Archived from the original on 2013-12-31. Retrieved 2009-12-30.
  5. ↑ ISO (2007-01-29). "ISO/IEC 23003-1:2007 - Information technology -- MPEG audio technologies -- Part 1: MPEG Surround". ISO. Retrieved 2009-10-24.
  6. ↑ ISO/IEC JTC1/SC29/WG11 (July 2005). "Tutorial on MPEG Surround Audio Coding". Archived from the original on 2010-04-30. Retrieved 2010-02-09.
  7. ↑ ISO (2010-10-06). "ISO/IEC 23003-2 - Information technology -- MPEG audio technologies -- Part 2: Spatial Audio Object Coding (SAOC)" . Retrieved 2011-07-18.
  8. ↑ "ISO/IEC DIS 23003-3 - Information technology -- MPEG audio technologies -- Part 3: Unified speech and audio coding". 2011-02-15. Retrieved 2011-07-18.
  9. ↑ ISO (2015). "ISO/IEC 23003-4 - Information technology -- MPEG audio technologies -- Part 4: Dynamic Range Control" . Retrieved 2016-12-21.
  10. ↑ ISO (2020). "ISO/IEC 23003-5 - Information technology — MPEG audio technologies — Part 5: Uncompressed audio in MPEG-4 file format" . Retrieved 2021-01-03.
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