Amplitude coding
Sign and offset are not VLC
Use Shannon-Fano for each coefficient
Group blocks, send MAX first to avoid the trailing “0” in the highest amplitude
Example 1: 0 1 2 1 0 2 2 1 2
SF direct (18b) 0 10 110 0 110 110 10 110
With MAX 1st (17b) (110)0 10 11 0 11 11 10 11
Example 2: 0 1 0 1 1 1 1 0
SF direct (13b) 0 10 0 10 10 10 10 0
With MAX 1st (10b) (01) 0 1 0 1 1 1 1 0