Back نظام ويندوز الصوتي Arabic Windows Media Audio Bulgarian Windows Media Audio Catalan Windows Media Audio Czech Windows Media Audio Danish Windows Media Audio German Windows Media Audio Spanish Windows Media Audio Finnish Windows Media Audio French Windows Media Audio Hungarian
| Filename extension |
.wma |
|---|---|
| Internet media type | audio/x-ms-wma |
| Developed by | Microsoft |
| Initial release | August 17, 1999[1] |
| Type of format | Audio |
| Open format? | No |
| Free format? | No |
| Website | microsoft.com/windowsmedia at the Wayback Machine (archived 2008-02-11) |
Windows Media Audio (WMA) is a series of audio codecs and their corresponding audio coding formats developed by Microsoft. It is a proprietary technology that forms part of the Windows Media framework. Audio encoded in WMA is stored in a digital container format called Advanced Systems Format (ASF).
WMA consists of four distinct codecs. 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] WMA Voice, targeted at voice content, applies compression using a range of low bit rates.[4]
- ^ Cite error: The named reference
wmt4-releasewas invoked but never defined (see the help page). - ^ Smith, Tony (1999-03-12). "Microsoft readies MP3-killer digital music format". The Register. Archived from the original on 2008-03-21. Retrieved 2007-08-16.
- ^ "Analysis of the Microsoft Audio Codec". RealNetworks. Archived from the original on 2007-08-18. Retrieved 2007-08-16.
- ^ a b c "Windows Media 9 Series Capabilities and Benefits Overview". International Narcotics Control Board. Archived from the original (DOC) on 2007-09-28. Retrieved 2007-08-16.
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