search for: previous_blocksize

Hi, can someone explain whats the meaning of the two blocksizes in the first header of Vorbis, please? So far I assumed that they meant that 2^b0 and 2^b1 were the only two blocksizes used during the whole encode, but something makes me believe they are not: if b0 and b1 are 0xb8 respectively (that I interpeted as 2^11 = 2048 and 2^8 = 256) I observe 3 different deltas between each couple of