Originally Posted by Flag
So all VBRs can go from 32 to 320 kbps, depending on the the part of a song?
Yes VBR will allocate less bitrate for simple easier part and put more bitrate for complex harder part.
*the next are made up number I don't know what algorithm they use to decide how they allocate bitrate
For example the 218 kbps can have up to 320 kbps on some part and 128 kbps(completely made up number I have no idea how low it goes) on part that don't need that much bitrate
You'll end up in theory with a better quality files since it allocate bitrate where it's need and don't waist bitrate where it's not need.
Since it constantly changing bitrate at the end you have numbers like 191, 219, and 188.