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Windows Media Audio 9 Lossless

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Title: Windows Media Audio 9 Lossless  
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Subject: Data compression, Lossless compression, Windows Media Player, Audiophile, Apple Lossless, List of codecs, Libavcodec, Comparison of audio formats, Comparison of portable media players
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Windows Media Audio 9 Lossless

Windows Media Audio 9 Lossless is a lossless incarnation of Windows Media Audio, an audio codec by Microsoft, released in early 2003.

It compresses an audio CD to a range of 206 to 411MB, at bit rates of 470 to 940 kbit/s. The result is a bit-for-bit duplicate of the original audio file; in other words, the audio quality on the CD will be the same as the file when played back. WMA Lossless uses the same .WMA file extension as other Windows Media Audio formats. It supports 6 discrete channels and up to 24-bit/96kHz lossless audio. The format has never been publicly documented, although an open source decoder has been reverse engineered for non-Microsoft platforms by the libav and ffmpeg projects.

See also

External links

  • http://www.microsoft.com/windows/windowsmedia/9series/codecs/audio.aspx - Homepage
  • http://www.winsupersite.com/reviews/wm9series.asp - Windows Media 9 Series reviewed
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