วันอังคารที่ 23 กันยายน พ.ศ. 2551

MP3 vs. WMA

There are only a few audio compression formats out there, just as there are only a few sizes of image compression (May you have heard of them: JPG, GIF, BMP). Two of the most popular audio formats WMA, or Windows Media Audio and MP3 (MPEG stands for Moving Pictures Experts Group, Audio Layer 3). WMA is the older audio format, produced by Microsoft, to work with Microsoft Windows Media Player. WMA compression format was designed specifically for this format and therefore can not be converted to other audio formats. The sound quality of MP3 and WMA audio formats tend to be significantly different. WMA is a quality of streaming audio format of the telephone line speeds (or perhaps 30 Kbps). At the same speed WMA almost as if a FM level of audio quality, but not entirely. At 128 kbps, Microsoft claims that WMA is near CD quality, although many are denied. WMA is not expected more complete. The compression provides relatively small audio files and requires less processing power to run. Deminishing therefore retain a niche as MP3 has become more popular and widely used. MP3 audio compression was developed in Germany in 1991 by the Fraunhofer Institute. MP3 typically provides higher sound quality WMA because they use the perception of audio coding to compress CD-quality sound by a factor of 12 Accordingly, the MP3 has become almost universal standard audio between use and the broadcasting. Provides CD-quality sound reasonable size and compression at high speed continuously. Beware, but low rates, quality MP3 probably suffer. James Bradley is an editor http://www.scinet.cc SciNet.cc, a website containing many helpful consumer electronics review articles. For more information on MP3 and WMA audio formats, please visit our MP3 vs. WMA http://www.scinet.cc/articles/wma-vs-mp3/wma-mp3.html site.

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