Question

Suppose we use the following predictor:
[ 1] [ 2]
ˆ [ ]
2
q q
q
m k m k
m k trunc
    
  
 
If the input signal has values of:
20 38 56 74 92 110 128 146 164 182 200 218 236
After passing through quantizer, reconstructed values of the input signal are:
20 44 56 74 89 105 121 153 161 181 195 212 243
Determine the quantized error signal values for the DPCM encoder (transmitter).