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 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.[1]
Files in ATRAC3 format originally had the .aa3 extension; however, in most cases, the files would be stored in an OpenMG Audio container using the extension .oma. Previously, files that were encrypted with OpenMG had the .omg extension, which was replaced by .oma starting in SonicStage v2.1. Encryption is no longer compulsory as of v3.2.
Other MiniDisc manufacturers such as Sharp and Panasonic also implemented their own versions of the ATRAC codec.
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Coding (ATRAC) is a family of proprietary audio compression algorithms developed by Sony. MiniDisc was the first commercial product to incorporate ATRAC, in...
ATRAC CD is a compressed audio optical disc containing compressed digital audio in the ATRAC3 or ATRAC3plus formats, which are part of Sony's ATRAC (Adaptive...
dramatically increasing.[citation needed] The ATRAC CD Walkman played ATRAC CDs in addition to audio CDs. The ATRAC CD contained audio encoded in ATRAC3 or...
Europe, North America, and other countries. The music format was based on ATRAC audio data compression, Sony's own proprietary compression code. Its successor...
audio re-encoding. It was also the first MD Walkman to incorporate the ATRAC DSP TYPE S codec, and is today (2006) the lightest recording MD Walkman...
2001. The NW-E10 has 128 MB memory, with cited storage for 240 minutes of ATRAC playback. It was the earliest Network Walkman to support the MP3 format...
last up to 30 hours for music and 8 hours for video. This player is an ATRAC Audio Device which relies on SonicStage to manage music. For photo and video...
playback of ATRAC files - after this Walkman DAPs lost the feature when ATRAC support ceased, but continued in Japan where players still came with ATRAC. Gapless...
Dutch). Retrieved 2023-09-01. Rutter, Thomas. "What the APN settings mean". Atrac Life. Retrieved 2016-03-13. Staff writer (21 July 2013). "APN List for US...
automatic playlists from it. The PSP has support for the playback of MP3 and ATRAC audio files, as well as WMA since firmware version 2.60. Sony partnered...
and was followed by others for home and portable usage, such as Sony's ATRAC (1992), the MP3 standard (1993) and AAC (1997). Batman Returns was the first...
Windows Media Player and RealPlayer. It is used to manage the library of ATRAC (.omg and .oma) and MP3 recordings on a PC. SonicStage was a requirement...
192 kHz Support for a wide variety of file formats: DSF (DSD), AA3/OMA (ATRAC), GIG (GigaSampler instrument), IVC (Intervoice), MP4 (including Apple Lossless)...
the system has transcoders for ripping to either MP3, AAC, or Sony's own ATRAC (ATRAC3plus) formats. Early models were also able to playback Super Audio...
new types of portable digital audio players. The minidisc player, using ATRAC compression on small, re-writeable discs was introduced in the 1990s, but...
containing many runs of the same value Adaptive Transform Acoustic Coding (ATRAC) Apple Lossless (ALAC – Apple Lossless Audio Codec) Audio Lossless Coding...
encountered. In signal processing, the Adaptive Transform Acoustic Coding (ATRAC) codec used in MiniDisc recorders is called "adaptive" because the window...
has attempted to promote its own audio compression technologies under the ATRAC brand, against the more widely used MP3. Until late 2004, Sony's Network...
copyright protection and, until 2004, exclusively supported Sony's in-house ATRAC format; there was no support for industry-standard MP3 as Sony wanted to...
format evolved toward a more robust implementation, including the use of 5:1 ATRAC data compression, extensive error detection and correction, and most critically...
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