Sony ATRAC: Difference between revisions

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(Add general ATRAC family description.)
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* Format tag: 0x270
* Product overview: http://www.sony.net/Products/ATRAC3/overview/index.html#family
* Company: [[Sony]]
* Developer's interview: https://www.sony.net/Products/ATRAC3/special/developers01.html
* Samples: http://samples.mplayerhq.hu/A-codecs/ATRAC3/
* 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
ATRAC ('''A'''daptive '''TR'''ansform '''A'''coustic '''C'''oding) is the collective name for audio compression technologies
http://www.minidisc.org/aes_atrac.html. It is used in MiniDisc portable players
developed by [[Sony]].
by many companies.


Same as [[RealAudio atrc]], the RealAudio streams are XOR scrambled.
This codec family includes the following compression algorithms today:


Stored in [[Microsoft_Wave|WAV]]/[[Microsoft_Audio/Video_Interleaved|AVI]], [[RealMedia|RM]] and [[Oma|Oma/Omg]] containers.
* [[ATRAC]]
 
* [[ATRAC3]]
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]]
* [[ATRAC3plus]]
* ATRAC Advanced Lossless (AAL)
* ATRAC Advanced Lossless (AAL)
ATRAC-compressed audio is usually stored in [[Microsoft_Wave|WAV]]/[[Microsoft_Audio/Video_Interleaved|AVI]], [[RealMedia|RM]] and [[Oma|Oma/Omg]] containers.


[[Category:Audio Codecs]]
[[Category:Audio Codecs]]

Latest revision as of 08:33, 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 compression algorithms today:

ATRAC-compressed audio is usually stored in WAV/AVI, RM and Oma/Omg containers.

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