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The 'Music' category is merely a guideline on commercialized uses of a particular format, not a technical assessment of its capabilities. For example, MP3 and AAC dominate the personal audio market in terms of market share, though many other formats are comparably well suited to fill this role from a purely technical standpoint.
Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression.It was designed to be the successor of the MP3 format and generally achieves higher sound quality than MP3 at the same bit rate.
As such, the user normally doesn't have a raw AAC file, but instead has a .m4a audio file, which is a MPEG-4 Part 14 container containing AAC-encoded audio. The container also contains metadata such as title and other tags, and perhaps an index for fast seeking. [2] A notable exception is MP3 files, which are raw audio coding without a ...
MPB contains AAC or ALAC encoded audio in an MPEG-4 container. (More details below.) .act: ACT is a lossy ADPCM 8 kbit/s compressed audio format recorded by most Chinese MP3 and MP4 players with a recording function, and voice recorders .aiff: Apple: A standard uncompressed CD-quality, audio file format used by Apple.
The original WMA codec, known simply as WMA, was conceived as a competitor to the popular MP3 and RealAudio codecs. [2] [3] WMA Pro, a newer and more advanced codec, supports multichannel and high-resolution audio. [4] A lossless codec, WMA Lossless, compresses audio data without loss of audio fidelity (the regular WMA format is lossy). [4]
AAC MP3 WMA Vorbis DRM Preview (seconds) Stream purchases 7digital: 81 [2] Yes [3] Web, Android 24-bit No No No 320 kbps 320 kbps No No No 30 Yes Amazon Music: 90 [4] Yes Web, Android [5] No No No No No 256 kbps No No No 30: Yes Bandcamp: 18.1: No Web 24-bit 24-bit 24-bit 24-bit Yes Yes No Yes No Full Yes Beatport: 9 [6] Yes [7] Web No No 16 ...
WMA Professional 10 1-pass CBR, 48 kbit/s; Nero HE-AAC May 26, 2006-q 0.2; WMA Standard 9.2 Quality-Based VBR, Q10; iTunes AAC 7.0.2.16 48 kbit/s, CBR; Various 20 22-34 Nero HE-AAC: WMA Professional and aoTuV tied for second Sebastian Mares: 2007 July multiple ~64 Ogg Vorbis AoTuV 5 Beta-q 0; WMA Professional 10 1-pass CBR, 64 kbit/s; Nero HE ...
An MP3 coded with MPEG-2 results in half of the bandwidth reproduction of MPEG-1 appropriate for piano and singing. A third generation of "MP3" style data streams (files) extended the MPEG-2 ideas and implementation but was named MPEG-2.5 audio since MPEG-3 already had a different meaning. This extension was developed at Fraunhofer IIS, the ...