EC > GATE 2017 SET-1 > Pulse Code Modulation
Which one of the following statements about differential pulse code modulation (DPCM) is true?
A
The sum of message signal sample with its prediction is quantized
B
The message signal sample is directly quantized, and its prediction is not used
C
The difference of message signal sample and a random signal is quantized
D
The difference of message signal sample with its prediction is quantized

Correct : d

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