Sony ATRAC: Difference between revisions

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(Add general ATRAC family description.)
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* Samples: http://samples.mplayerhq.hu/A-codecs/ATRAC3/
* Samples: http://samples.mplayerhq.hu/A-codecs/ATRAC3/
* Technical: http://www.minidisc.org/aes_atrac.html
* Technical: http://www.minidisc.org/aes_atrac.html
ATRAC (Adaptive TRansform Acoustic Coding) is the collective name for audio compression technologies
developed by [[Sony]]. This codec family includes the following codecs today: ATRAC, ATRAC3,
ATRAC3plus and ATRAC Advanced lossless.
You can read about it at http://www.sony.net/Products/ATRAC3/overview/index.html#family
The ATRAC codec was introduced in 1992 with the MiniDisc. There is a good description at
http://www.minidisc.org/aes_atrac.html. It is used in MiniDisc portable players
by many companies.


Same as [[RealAudio atrc]], the RealAudio streams are XOR scrambled.
Same as [[RealAudio atrc]], the RealAudio streams are XOR scrambled.

Revision as of 06:16, 29 November 2018

ATRAC (Adaptive TRansform Acoustic Coding) is the collective name for audio compression technologies developed by Sony. This codec family includes the following codecs today: ATRAC, ATRAC3, ATRAC3plus and ATRAC Advanced lossless. You can read about it at http://www.sony.net/Products/ATRAC3/overview/index.html#family

The ATRAC codec was introduced in 1992 with the MiniDisc. There is a good description at http://www.minidisc.org/aes_atrac.html. It is used in MiniDisc portable players by many companies.

Same as RealAudio atrc, the RealAudio streams are XOR scrambled.

Stored in WAV/AVI, RM and Oma/Omg containers.

Sony Dynamic Digital System (SDDS), used in theatres, is based on ATRAC. Common use of the codec is in Sony made Minidisc and Flash based players.

There are some known variants:

  • ATRAC
  • ATRAC3
  • ATRAC3plus
  • ATRAC Advanced Lossless (AAL)
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