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Adaptive TRansform Acoustic Coding
(redirected from Atrac3plus)

    Also found in: Wikipedia 0.06 sec.
(algorithm)Adaptive TRansform Acoustic Coding - (ATRAC) An audio compression algorithm, introduced by Sony for its Mini Disk, which relies on the masking of low-amplitude frequency components by temporaly adjacent high-amplitude components. ATRAC consists of a three-band subband encoder (0...5.5, 5.5...11, 11...22 kHz) and a MDCT based transformation encoder.



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Still capable of playing back discs in the old MD format, Hi-MD players use ATRAC3 (65, 105 and 132kbps), ATRAC3plus (48,64 and 256kbps) and Linear PCM Codecs, representing a genuine step forward for the format.
Sony HMD1G by Japan Inc.
The Sony VGP-MR100 features include MPEG-1 and MPEG-2 ("Giga Pocket" or "Do VAIO"), DV-AVI and HDV file (camcorder files), WMV support for video files, ATRAC3, ATRAC3plus, WAVE, MP3 and WMA support for audio files, JPEG, GIF, PNG, TIFF and BMP support for image files, IEEE 802.
Sigma Designs Powers Sony's New Network Media Receiver; The Network ... by Business Wire
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