it depend on your converter softwar (or you need a converter softwar, plenty of free on the net)
mine could take the wav and convert into any mp3 quality (320, 256, 224, 192, 160, 128, 112, 96 and lesser format) by changing in the option/setting
however, you could not convert a 160kbps into a 320kbps, the file would be at the same quality but wait heavier (it will be something like a little toy give in a big gift box)...
