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Audio Coding Lecture 7. Content  Digital Audio Basic  Speech ...
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The following tables compare general and technical information for a variety of audio coding formats. For listening tests comparing the perceived audio quality of audio formats and codecs, see the article Codec listening test.


Video Comparison of audio coding formats



General information

Notes

  1. The 'Music' category is merely a guideline on commercialized uses of a particular format, not a technical assessment of its capabilities. (For example, in terms of marketshare, MP3 and AAC dominate the personal audio market, though many other formats are comparably well suited to fill this role from a purely technical standpoint.)
  2. First public release date is first of either specification publishing or source releasing, or in the case of closed-specification, closed-source codecs, is the date of first binary releasing. Many developing codecs have pre-releases consisting of pre-1.0 versions and perhaps 1.0 release candidates (RCs), although 1.0 may not necessarily be the release version.
  3. Latest stable version is that of specification or reference tools.
  4. If there happens to be OSI licensed software available for a particular format, this does not necessarily permit one to use said codec free of charge. Likewise, if there is only proprietary licensed software available for a particular format, one might be able to use the codec free of charge.

Maps Comparison of audio coding formats



Operating system support


Audio Codec (AAC)
src: www.althos.com


Multimedia frameworks support


MPEG Audio Compression - ppt download
src: slideplayer.com


Technical details

Notes

  • The latency listed here is the total delay (frame size, plus all lookahead) at the normal operating sample rate (typically 44.1 kHz).
  • Lossless compression will have a variable bit rate.

Comparison of audio coding formats Wikipedia - oukas.info
src: sunmaiblog.files.wordpress.com


See also

  • Comparison of audio player software
  • Comparison of video player software
  • List of codecs
    • Open source codecs and containers
  • Comparison of video codecs
  • Comparison of container formats

The UK's First Music Price Comparison and Community Site Launched
src: ww1.prweb.com


References


Automating image optimization | Web Fundamentals | Google Developers
src: developers.google.com


External links

  • Comparative test April, 2004
  • EBU subjective listening tests on low-bitrate audio codecs
  • Hydrogenaudio comparison of lossless formats
  • Tsabary, Eldad. "A Survey of Audio Coders for Electronic-Art Music." eContact! 9.4 -- Perte auditive et sujets connexes / Hearing (Loss) and Related Issues (May 2007). Montréal: CEC.
  • Rodman, Jeffrey "VoIP to 20 kHz: Codec Choices for High Definition Voice Telephony" (July, 2008)

Source of the article : Wikipedia

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