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