Test for WMA10 Pro coding at VBR mode.

In my article “Comparing WMA10 Pro formats at middle-high and high bit rates (96Kbps-256Kbps) ” I’ve compared the WMA10 Pro formats at different bit rates (actually at CBR), but one of most important feature that is built in WMA10 Pro codes is its VBR mode, so I’ll make several simple illustrations to compare the performance of WMA10 Pro VBR coding. For test, I use the sample music file “Vengaboys - We like to Party (Airplay).wave” (Size: 38416Kb, length:03:43, channel:2(strereo), bit rate: 1411kbps, Sample rate: 44100Hz)













Conclusions:

As we can see, the WMA10 Pro VBR10 performanced very well at small size(Only 1544Kb), surprisingly for the VBR25 and VBR50 mode I could only say, it is barely enough. However, some improvements at VBR75 mode comparing to VBR50 are still remarkable. The VBR90 mode has brought a nearly excellent performance with small size(3839Kb) and even at VBR98(at best VBR mode) it has shown the perfect wave with size 6499Kb which surely can be accepted by a lot of music fans, in fact, it is a great news for them, especially for the guys who don't have much space in harddisk! (100 CDs (about 1000 Songs) in Flac or Ape format eat up at least 20G! but in WMA10 VBR98 mode, it could be 5G!)