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Audio codec by Sony
Coding (ATRAC) is a family of proprietary audio compression algorithms developed by Sony. MiniDisc was the first commercial product to incorporate ATRAC, in
ATRAC
Magneto-optical storage medium, mainly for audio (1992–2013)
Europe, North America, and other countries. The music format was based on ATRAC audio data compression, Sony's own proprietary compression code. Its successor
MiniDisc
Sony's portable CD player
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
Discman
Sony music management software (2001–09)
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
SonicStage
Series of portable media players
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
Walkman_E_Series
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
List_of_Sony_Walkman_products
Optical disc storing compressed audio files
format, as well as Ogg Vorbis, AAC, the proprietary Windows Media Audio, and ATRAC. Because of audio data compression, optical discs do not have to spin all
Compressed_audio_optical_disc
Computer format for digital audio
Audio (filename extension .ape), WavPack (filename extension .wv), TTA, ATRAC Advanced Lossless, ALAC, MPEG-4 SLS, MPEG-4 ALS, MPEG-4 DST, Windows Media
Audio_file_format
information i.e. album, artist etc.). Sony also removed compatibility with ATRAC which replaced the customers need for SonicStage, with Windows Media Player
Sony_NW-A810
Digital audio players by Sony
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
Walkman_A_Series
Japanese multinational corporation
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
Sony
Handheld game console by Sony
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
PlayStation_Portable
Audio compression technologies
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
Dolby_Digital
Digital audio players sold by Sony
480 (FWVGA) 16 hours (Hi-Res Audio), 32 hours (MP3) MP3, WMA, ATRAC (Japanese market), ATRAC Advanced Lossless (Japanese market), WAV, AAC, HE-AAC, FLAC
Walkman_ZX_Series
Digitally coded format for audio signals
(ALAC – Apple Lossless Audio Codec) Adaptive Transform Acoustic Coding (ATRAC) Audio Lossless Coding (also known as MPEG-4 ALS) Direct Stream Transfer
Audio_coding_format
Line of portable media players
QVGA LCD. Just as the A810, the S710/S610 was the joint first to remove ATRAC support and not require SonicStage, apart from domestic Japanese models
Walkman_S_Series
Uninterrupted playback of consecutive audio tracks
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
Gapless_playback
Home video game console by Sony
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
PlayStation_3
Digital audio format
MUSICAM, by Matsushita, CCETT, ITT and Philips. The third group was ATAC (ATRAC Coding), by Fujitsu, JVC, NEC and Sony. And the fourth group was SB-ADPCM
MP3
Standardized digital audio interface
available over IEC 61937, including Dolby AC-3/E-AC-3, Dolby TrueHD, MP3, AAC, ATRAC, DTS, and WMA Pro. The receiver does not control the data rate, so it must
S/PDIF
Mathematical transform using in signal processing
including MP3, Dolby Digital (AC-3), Vorbis (Ogg), Windows Media Audio (WMA), ATRAC, Cook, Advanced Audio Coding (AAC), High-Definition Coding (HDC), LDAC,
Modified discrete cosine transform
Modified_discrete_cosine_transform
Portable media player
GB October 2012 3.5" LCD 800x480 (WVGA) 20 hours MP3, WMA, ATRAC (Japanese market), ATRAC Advanced Lossless (Japanese market), WAV, AAC, HE-AAC, FLAC
Walkman_F_Series
Sony digital video recorder with an integrated PlayStation 2
were dropped, as well as MP3 format audio, and instead DVD-RW discs and ATRAC format audio were retained upon release. However, firmware updates (versions
PSX_(digital_video_recorder)
Multimedia information signaling
RFC 5584 – "RTP Payload Format for the Adaptive TRansform Acoustic Coding (ATRAC) Family," Proposed Standard. RFC 5686 – "RTP Payload Format for mU-law EMbedded
RTP_payload_formats
Algorithm that changes its behavior at the time it is run
encountered. In signal processing, the Adaptive Transform Acoustic Coding (ATRAC) codec used in MiniDisc recorders is called "adaptive" because the window
Adaptive_algorithm
Name of a gateway between a mobile network and another computer network
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
Access_Point_Name
featured a built-in camera, Wi-Fi, Bluetooth on non-US versions and an MP3/Atrac Player. Palm OS: 5.2.1 CPU: 123 MHz Sony Handheld Engine Memory: 32MB Display:
Sony_CLIÉ_PEG-TH55
Recording of sound and playing it back
new types of portable digital audio players. The minidisc player, using ATRAC compression on small, re-writeable discs was introduced in the 1990s, but
Sound recording and reproduction
Sound_recording_and_reproduction
List of computer file compression formats
(2013-2017) L2HC - Huawei Huawei Music NearLink Huawei FreeBuds Oddball ATRAC Advanced Lossless (AAL) – Extremely unpopular FFmpeg (lossy decoder only)
List_of_codecs
Technique used in signal processing and data compression
Blu-ray, streaming media, video games Adaptive Transform Acoustic Coding (ATRAC) 1992 MiniDisc MP3 1993 Digital audio distribution, MP3 players, portable
Discrete_cosine_transform
Cinema sound system
format evolved toward a more robust implementation, including the use of 5:1 ATRAC data compression, extensive error detection and correction, and most critically
Sony_Dynamic_Digital_Sound
Topics referred to by the same term
of the series America's Army 3, one of several version of the video game ATRAC files use the file extension .aa3 AA-3 Anab, Kaliningrad K-8 (R-8)'s, a
AA3
Portable device capable of storing and playing digital media
MP3 players as it did not support the MP3 format but instead Sony's own ATRAC format and WMA. The company's first MP3-supporting Walkman player did not
Portable_media_player
Series of portable media players by Sony
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
Walkman
console can play back discs with compressed audio files in the MP3, WMA, and ATRAC formats, images in the JPEG format, and videos in the MPEG-4 format. With
PlayStation 3 technical specifications
PlayStation_3_technical_specifications
Any recording method using digital data recorded to a medium other than audio/videotape
mid-to-high end portable voice recorders, which record to formats such as MP3 or ATRAC. In the 30 years from the mid-1980s to 2015, tapeless production has moved
Tapeless_production
Information transmission rate expressed in bits per second
high quality signal 292 kbit/s – Sony Adaptive Transform Acoustic Coding (ATRAC) for use on the MiniDisc Format 400 kbit/s–1,411 kbit/s – lossless audio
Bit_rate
2018-05-31. Retrieved 2020-09-14. "Coco/R own DSL grammar". github.com. "ATRAC Developer's Interview". sony.net. Retrieved 2020-09-12. "AU (.au)". "AVI
List of filename extensions (A–E)
List_of_filename_extensions_(A–E)
Windows software
playback of numerous formats including high-resolution audio, namely: ATRAC (.oma/.aa3), ATRAC Advanced Lossless (.oma/.aa3), WAV (.wav), MP3 (.mp3), AAC (.3gp/
Music_Center_for_PC
link, Bluetooth A2DP stereo, digital wireless microphone Yes No No Yes No ATRAC Sony Corp. 1991 ATRAC3plus Non-free MiniDisc, Walkman, VAIO, Clie, PlayStation
Comparison of audio coding formats
Comparison_of_audio_coding_formats
Lossy audio compression format
their PlayStation Portable (albeit Sony continued promoting its proprietary ATRAC), and music-oriented cell phones from Sony Ericsson, beginning with the
Advanced_Audio_Coding
Audio editing software
192 kHz Support for a wide variety of file formats: DSF (DSD), AA3/OMA (ATRAC), GIG (GigaSampler instrument), IVC (Intervoice), MP4 (including Apple Lossless)
Sound_Forge
Type of data compression
transform (MDCT) Dolby Digital (AC-3) Adaptive Transform Acoustic Coding (ATRAC) MPEG Layer III (MP3) Advanced Audio Coding (AAC / MP4 Audio) Vorbis Windows
Lossy_compression
Third part of the ISO/IEC MPEG-4 standard
MPEG-4 AAC LC.[citation needed] MPEG-4 AAC-SSR is very similar to ATRAC and ATRAC-3. The idea behind AAC-SSR was not only the advantage listed above
MPEG-4_Part_3
Scientific study of sound perception
Layer II (used for digital audio broadcasting in several countries), and ATRAC, the compression used in MiniDisc and some Walkman models. Psychoacoustics
Psychoacoustics
Japanese consumer electronics brand
notably supported MP3 format while Sony's own branded players only played ATRAC. Aiwa's portable CD players were equipped with a so-called E.A.S.S. G.P
Aiwa
Data compression approach allowing perfect reconstruction of the original data
containing many runs of the same value Adaptive Transform Acoustic Coding (ATRAC) Apple Lossless (ALAC – Apple Lossless Audio Codec) Audio Lossless Coding
Lossless_compression
CD player data buffer system
player will rarely skip due to a large buffer. Due to the nature of the ATRAC compression scheme, and to ensure uninterrupted playback in the presence
Electronic_skip_protection
Evolution of auditory media
until 1994. MiniDisc (MD) Digital. Adaptive Transform Acoustic Coding (ATRAC) 1993 DTS, SDDS, MP3 (file formats) Digital. Digital Theatre System (DTS)
Timeline_of_audio_formats
Lossy audio compression applied to human speech
Waveform coders Time-domain: PCM, ADPCM Frequency-domain: sub-band coding, ATRAC Vocoders Linear predictive coding (LPC) Formant coding Machine learning
Speech_coding
Part 3 (MP2 and MP3), MPEG-2 Part 7/MPEG-4 Part 3 (AAC and HE-AAC), and ATRAC, and is extensible to support manufacturer-defined codecs, such as aptX
List_of_Bluetooth_profiles
Personal digital assistant product line
2003. These models are identical, except the TJ-35 also offers MP3 and ATRAC playback capabilities with a headphone jack. Powered by an ARM iMX-1 processor
Sony_CLIÉ_TJ_Series
Open-source lossy audio codec
audio compression at bitrates around 128 kbit/s, beating MP3, AAC, WMA, and ATRAC. Listening tests of MPC: 2005 – 180 kbit/s blind listening comparison between
Musepack
Media player and library program for Windows
supports various audio file types including MP3, WAV, ALAC, FLAC, WMA, ATRAC, DSD, OGG and others. It also supports various video formats and image formats
Media_Go
Digital audio recording format
quality between PASC and the 5:1 compression used by early versions of ATRAC in the original MiniDisc is largely a subjective matter. After adding system
Digital_Compact_Cassette
Metadata formats for display devices
1 and 2) 0100 4: MP3 0101 5: MPEG-2 0110 6: AAC LC 0111 7: DTS 1000 8: ATRAC 1001 9: One-Bit Audio (DSD), Super Audio CD 1010 10: Dolby Digital Plus
Extended Display Identification Data
Extended_Display_Identification_Data
Topics referred to by the same term
Iran Atrak Air, an Iranian Airline Adaptive Transform Acoustic Coding (ATRAC) This disambiguation page lists articles associated with the title Atrak
Atrak
Handheld Internet wi-fi device, 2006–2010
Media COM–1. The player supports the MP3, WMA (secured and unsecured) and ATRAC 3 audio formats. The image viewer supports JPG, PNG, and Bitmap formats
Mylo_(Sony)
Audio data compression technology
source FFmpeg project. Designed for archival purposes, it competed with ATRAC Advanced Lossless, Dolby TrueHD, DTS-HD Master Audio, Shorten, Monkey's
Windows_Media_Audio
format. PSP's audio player supports a number of audio codecs, including ATRAC, AAC, MP3, and WMA, and has the option to be played with or without a set
PlayStation_Portable_hardware
DSLR) Aiwa AIR Air-Egg AirTrac Airpeak America's Digital Yearbook APOS ASC ATRAC ATRAC3 Audio Very Important Professional Club Audio VIP Club Auto Access
List_of_Sony_trademarks
Digital rights management system developed by Sony
Criminals". Wall Street Journal. Archived from the original on 25 September 2022. Retrieved 17 August 2025. ATRAC Archived 2020-07-21 at the Wayback Machine
OpenMG
generally supplied with the recorder. Even when you do copy the original ATRAC file to the computer, it will only play on that particular computer and
Sealed_Set
ATRAC
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ATRAC
ATRAC
ATRAC
ATRAC
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ATRAC
ATRAC