Audio

1. WMA because it is Microsoft's work, must not be underestimated, WMA, as a shot in the arm for a streaming media format, like great progress. WMA files can flow in only 20K Bitrate provide audible sound quality, so WMA is often used for online listening and broadcasting as the first choice, Microsoft is already in Windows Media Player provides playback support. When the WMA's Bitrate up to 128k, almost all the damage at the same level encoding format of the Swordsman, MP3 at 128KBitrate time, there will be a clear high-frequency loss, but not WMA. But it seems that 128k is WMA a threshold, when the Bitrate upward increase, it will not have too much quality change (Microsoft's WMA, under the so-called 64kbits can achieve near CD sound quality is a True Lies), MP3 is not the same In 192K, the sound quality than the WMA could be better. Microsoft's WMA encoding release are mainly aimed at two goals, one is aimed at the network RM and RAM formats, the other is the user's hard drive in MP3. However, the high quality request, WMA still can not constitute a threat to MP3. If you want to be around 12:1 or higher compression ratio, you may wish to choose WMA format, at this flow rate, WMA outstanding too much. WMA and MP3's strengths and weaknesses has been the focus of our argument, in fact, this is an unanswerable question. It depends on your actual needs, is seeking a high quality (mp3) or a high compression ratio (wma).

2. VQF in the WMA is not popular before, VQF is a very popular format, because of its low bit-rate sound quality is better than MP3 (somewhat less than the WMA). Does not support "streaming" is the fatal weakness of VQF, which may also be why it now was completely suppressed a major cause of WMA.