ATRAC
Sign in to saveAlso known as .aa3, .at3, .oma
Adaptive Transform Acoustic Coding (ATRAC) is a family of proprietary audio compression algorithms developed by Sony. MiniDisc was the first commercial product to incorporate ATRAC, in 1992. ATRAC allowed a relatively small disc like MiniDisc to have the same running time as a CD while storing audio information with minimal perceptible loss in quality. Improvements to the codec in the form of ATRAC3, ATRAC3plus, and ATRAC Advanced Lossless followed in 1999, 2002, and 2006 respectively.
Key facts
- File format.icon
- Atrac.svgclass=skin-invert
- File format.icon_size
- 200px
- File format.extension
- .aa3, .aea, .at3, .at9, .atp, .hmaOpenMG container .oma, .omg
- File format.owner
- Sony Corporation
- File format.genre
- Audio
- File format.open
- No
- File format.free
- No
via Wikipedia infobox
Wikidata facts
- Instance of
- audio coding format
- Subclass of
- audio file format
- Developer
- Sony Group
Show 4 more facts
- narrower external class
- cv.iptc.org/newscodes/audiocodec/c111
- Commons category
- ATRAC
- file extension
- at3
- media type
- audio/ATRAC-X
Sources (1)
via Wikidata · CC0
Article · 中文
自適應聽覺轉換編碼（英語：Adaptive Transform Acoustic Coding，缩写ATRAC）為Sony公司於1992年所開發之音訊有损数据压缩技術，也是相關技術名詞之總稱。除了Sony本身，其他MiniDisc製造商如Sharp、Panasonic等，也有各自研發自家的ATRAC编解码器。 Sony在2007年9月11日發佈的Walkman,S600F/S700F系列繼續能夠使用SonicStage和ATRAC音频格式，而Sony對此決定解釋為“为了考虑到各个地区的市场特性，所作出的规格决定。”。 美國與其他國家之專利授權來自杜比實驗室。
Abstract from DBpedia / Wikipedia · CC BY-SA