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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.
The data compression software for encoding into ALAC files, Apple Lossless Encoder, was introduced into the Mac OS X Core Audio framework on April 28, 2004, together with the QuickTime 6.5.1 update, thus making it available in iTunes since version 4.5 and above, and its replacement, the Music application. [8]
For example, LAME was chosen as the representative MP3 encoder because it clearly outperformed four other MP3 encoders on a subset of the full sample corpus. Sebastian Mares: 2005 December multiple ~140 (nominal 128) Nero AAC 3.1.0.2 VBR/Stereo - Streaming, 100-120 kbit/s [LC AAC] iTunes AAC 6.0.1.3 128 kbit/s, VBR; LAME 3.97 Beta 2-V5—vbr-new
Xiph.org is home to other free compression formats such as Vorbis, Theora, Speex and Opus. [5] [6] [7] Version 1.3.0 was released on 26 May 2013, at which point development was moved to the Xiph.org git repository. [8] In 2019, FLAC was proposed as an IETF standard. [9] In December 2024, FLAC was formally specified in and published as RFC 9639 ...
BuyMusic was a digital branch of Buy.com, launched around 2003, was later merged into the music section of Buy.com, and then shut down in late 2009. [18] Walmart.com operated an online music store, but discontinued it in 2011. [19] Puretracks operated an online music store, but discontinued it in 2013. [20] Pono Music closed in July 2016. [21]
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Songbird: supports AAC on Windows, Linux and Mac OS X, including the DRM rights management encoding used for purchased music from the iTunes Store, with a plug-in; Sony SonicStage; VLC media player: supports playback and encoding of MP4 and raw AAC files; Winamp for Windows: includes an AAC encoder that supports LC and HE AAC
A lossless audio coding format reduces the total data needed to represent a sound but can be de-coded to its original, uncompressed form. A lossy audio coding format additionally reduces the bit resolution of the sound on top of compression, which results in far less data at the cost of irretrievably lost information.