ATRAC3


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ATRAC3

(Adaptive TRansform Acoustic Coding3) An audio compression technology from Sony that provides multiple compression ratios depending on desired sound quality. At 132 Kbps, the music can be compressed to approximately 10% of the space used by a CD. Introduced on the MiniDisc in 1993, the original ATRAC format provided near CD quality sound, but ATRAC3, introduced in 1999, rivals the CD. ATRAC compression is 5:1; ATRAC3 is 10:1.

ATRAC3plus
In 2002, Sony introduced ATRAC3plus, which provides a 20:1 compression ratio, bringing the data down to 5% of the original CD. It can achieve very high quality sound at 48 and 64 Kbps or be practically indistinguishable from the original at 256 Kbps. The CD data rate is 1,411 Kbps. See Memory Stick and OpenMG.
References in periodicals archive ?
Digital's multi-codec platform including ATRAC3 support can be incorporated into a variety of products including portable digital music players, home and automotive stereos, and functionally-enhanced wireless phones.
This agreement furthers the penetration of ATRAC3 in the Internet music market," said Yutaka Nakagawa, corporate senior vice president of Sony Corp.
Digital's president and chief executive officer, said, "Sony's ATRAC3 is one of the premier music codecs available and it is gaining support from a number of companies in the industry including online music providers.
ATRAC3 is a codec developed from ATRAC (Adaptive Transform Acoustic Coding), which is the sound compression technology used in MiniDisc.
Sonic Solutions (Nasdaq:SNIC) announced today at the Audio Engineering Society Convention (AES) in Paris that they would collaborate to integrate Sony's ATRAC3 (Adaptive Transform Acoustic Coding 3) into iMaster, Sonic's suite of professional tools for the preparation of compressed audio for Internet distribution.
Sonic will build Sony's ATRAC3 encoder directly into the iMaster toolkit running on the award-winning SonicStudio HD workstation, giving mastering engineers the ability to produce Electronic Music Distribution (EMD) masters for Internet distribution of audio in parallel with production of conventional CD-Audio releases.
To ensure the success of Sony's EMD business, we felt that it was essential for Sony to collaborate with Sonic Solutions to support major record labels in the preparation of ATRAC3 music content for Internet delivery.
Through close collaboration with Sony, we will be able to quickly deploy the ATRAC3 secure music coding technology to the professional mastering community, making the preparation of high-quality audio content for EMD possible.
Consumer electronics manufacturers can tap into the potential portable device market by licensing such technologies as OpenMG, MagicGate Memory Stick and ATRAC3.