ATRAC CD
 | |
| Filename extension |
.aa3 .oma .at3 .at9 .atp |
|---|---|
| Developed by | Sony Corporation |
| Type of format | Audio file format |
ATRAC CD is an audio compression optical disc developed by Sony. It uses the ATRAC3 and ATRAC3plus formats from Sony's ATRAC (Adaptive Transform Acoustic Coding) family of proprietary audio compression algorithms.
Description
ATRAC CD was used with Sonic Stage Simple Burner software (Ver.1.0 / 1.1) in February 2003[1], and was subsequently replaced with SonicStage in 2004. The new CD Walkman product was called "ATRAC CD Walkman". In the following year (2004-2005), ATRAC CD boombox was introduced as a new product.
| CD (Linear PCM) | ATRAC*1 | ATRAC3 | ATRAC3plus | |
| Bitrate | 1411kbit/s | 292kbit/s | 132kbit/s | 64kbit/s |
| DataSize (One 4 minute track) | 42.33MB | 8.77MB | 3.97MB | 1.94MB |
| Number of Tracks Recorded into CD-R（700MB) | About 16tracks | About 79tracks | About 176tracks | About 360tracks |
*1 "ATRAC" here refers to the SP mode used in the MD format.
See also
References
- ^ Quick Reference Guide - SONY USA
- ^ "Sony Global - ATRAC - Overview". www.sony.net. Retrieved 2020-07-18.
External links
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