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WMA File

This page contains information on the WMA file extension (Windows Media Audio), a popular music file format

File extension.wma
CategoryMusic File
DescriptionDeveloped by the Signal Processing Group at Microsoft, the WMA file format is part of the Windows Media framework and was first released commercially in 1999, with support for playback of WMA encoded files as part of Windows Media Player. Creation of WMA files did not come until Windows Media Player version 7. The original codec was targeted as a direct competitor to the MP3 and RealAudio formats, and has achieved a broad level of adoption thanks to support for playback on numerous DVD players, Nokia mobile handsets and Playstation portable devices.
Actions Convert WMA file
View other music file formats
Technical DetailsIn almost all circumstances WMA files are part of the Advanced Systems Format (ASF) container, a proprietary container format developed by Microsoft for both digital video and digital audio. Every WMA file contains an audio track encoded in one of four mutually distinct codecs - WMA, WMA Voice, WMA Lossless or WMA Pro - WMA is the most commonly found of the four, but is a lossy codec, with the ability to encode audio signals sampled at up to 48 kHz. WMA Pro is an improved version, allowing sampling up to 96 kHz, but has achieved little hardware and software support. WMA Lossless is designed to compress audio signals with no loss of quality from the original source (up to 96 kHz) and is used in some Windows Mobile devices as well as the Logitech Squeezebox Touch. Finally, WMA Voice is a lossy codec optimized for low-bandwith voice playback applications, with mono sampling support up to 22.05 kHz - it is perhaps most well known for being used by the BBC World service for streaming Internet radio.
Associated programs MPlayer
Realplayer
VLC Media Player
Windows Media Player
Windows Movie Maker
Developed by Microsoft
MIME type  audio/x-ms-wma
Useful links Encoding Audio and Video with Windows Media Codecs
Microsoft overview of ASF Format
Differences between ASF and WMV/WMA files
WMA format information from the Library of Congress
Convert WMA file
 

Convert WMA file

Using Zamzar it is possible to convert WMA files to a variety of other formats:

wma to aac (Advanced Audio Coding File)
wma to m4a (Compressed video file)
wma to m4r (iPhone Ringtone File)
wma to mp3 (Compressed audio file)
wma to mp4 (MPEG-4 Video File)
wma to ogg (Ogg Vorbis Compressed Audio File)
wma to wav (Windows audio file)

Convert WMA file