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MPEG-4 Part 3

MPEG-4 Part 3 or MPEG-4 Audio (formally ISO/IEC 14496-3) is the third part of the ISO/IEC MPEG-4 international standard developed by Moving Picture Experts Group.[1] It specifies audio coding methods. The first version of ISO/IEC 14496-3 was published in 1999.[2]

The MPEG-4 Part 3 consists of a variety of audio coding technologies – from lossy speech coding (HVXC, CELP), general audio coding (AAC, TwinVQ, BSAC), lossless audio compression (MPEG-4 SLS, Audio Lossless Coding, MPEG-4 DST), a Text-To-Speech Interface (TTSI), Structured Audio (using SAOL, SASL, MIDI) and many additional audio synthesis and coding techniques.[3][4][5][6][7][8][9][10][11]

MPEG-4 Audio does not target a single application such as real-time telephony or high-quality audio compression. It applies to every application which requires the use of advanced sound compression, synthesis, manipulation, or playback. MPEG-4 Audio is a new type of audio standard that integrates numerous different types of audio coding: natural sound and synthetic sound, low bitrate delivery and high-quality delivery, speech and music, complex soundtracks and simple ones, traditional content and interactive content.[7]

  1. ^ ISO (2009). "ISO/IEC 14496-3:2009 - Information technology -- Coding of audio-visual objects -- Part 3: Audio". ISO. Retrieved 2009-10-06.
  2. ^ ISO (1999). "ISO/IEC 14496-3:1999 - Information technology -- Coding of audio-visual objects -- Part 3: Audio". ISO. Retrieved 2009-10-06.
  3. ^ Business Wire (2002-12-02). "MPEG-4 Audio Licensing Committee Selects Via Licensing Corporation as Administrator; MPEG-4 Audio Licensing Committee Finalizing Terms for Audio Profile Licensing". The Free Library. Retrieved 2009-10-06. {{cite web}}: |author= has generic name (help)
  4. ^ Karlheinz Brandenburg; Oliver Kunz; Akihiko Sugiyama (1999). "MPEG-4 Natural Audio Coding – Audio profiles and levels". chiariglione.org. Archived from the original on 2010-07-17. Retrieved 2009-10-06.
  5. ^ Karlheinz Brandenburg; Oliver Kunz; Akihiko Sugiyama. "MPEG-4 Natural Audio Coding – scalability in MPEG-4 natural audio". chiariglione.org. Archived from the original on 2010-02-28. Retrieved 2009-10-06.
  6. ^ D. Thom, H. Purnhagen, and the MPEG Audio Subgroup (October 1998). "MPEG Audio FAQ – MPEG-4". chiariglione.org. Retrieved 2009-10-06.{{cite web}}: CS1 maint: multiple names: authors list (link)
  7. ^ a b ISO/IEC JTC 1/SC 29/WG 11 (July 1999), ISO/IEC 14496-3:/Amd.1 – Final Committee Draft – MPEG-4 Audio Version 2 (PDF), archived from the original (PDF) on 2012-08-01, retrieved 2009-10-07{{citation}}: CS1 maint: numeric names: authors list (link)
  8. ^ Heiko Purnhagen (1999-06-07), An Overview of MPEG-4 Audio Version 2 (PDF), Heiko Purnhagen, archived from the original (PDF) on 2017-07-06, retrieved 2009-10-07
  9. ^ Heiko Purnhagen (2001-06-01). "The MPEG-4 Audio Standard: Overview and Applications". Heiko Purnhagen. Retrieved 2009-10-07. [dead link]
  10. ^ Heiko Purnhagen (2001-11-07). "The MPEG Audio Web Page – MPEG-4 Audio (ISO/IEC 14496-3)". Retrieved 2009-10-07. [dead link]
  11. ^ Rob Koenen, ISO/IEC JTC1/SC29/WG11 (March 2002). "Overview of the MPEG-4 Standard". chiariglione.org. Retrieved 2009-10-06.{{cite web}}: CS1 maint: numeric names: authors list (link)
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