Microsoft has also developed a digital container format called Advanced Systems Format to store audio encoded by WMA. WMA Voice, targeted at voice content, applies compression using a range of low bit rates. A lossless codec, WMA Lossless, compresses audio data without loss of audio fidelity (the regular WMA format is lossy). WMA Pro, a newer and more advanced codec, supports multichannel and high resolution audio. The original WMA codec, known simply as WMA, was conceived as a competitor to the popular MP3 and RealAudio codecs. It is a proprietary technology that forms part of the Windows Media framework.
WMA is a lossless file format, which means that WMA media doesn't lose as many details during compression. Windows Media Audio ( WMA) is a series of audio codecs and their corresponding audio coding formats developed by Microsoft.
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