UGC NET CSE | August 2016 | Part 3 | Question: 59

makhdoom ghaya asked Oct 4, 2016 • recategorized Oct 14, 2018 by Pooja Khatri

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Which of the following is a source coding technique ?

Huffman coding
Arithmetic coding
Run-length coding
DPCM

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makhdoom ghaya asked Oct 4, 2016 • recategorized Oct 14, 2018 by Pooja Khatri

makhdoom ghaya

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option d

DPCM

Debasmita Bhoumik answered Feb 4, 2017

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Differential pulse code modulation (DPCM) is a procedure of converting an analog into a digital signal.

Basic concept of DPCM - coding a difference, is based on the fact that most source signals show significant correlation between successive samples so encoding uses redundancy in sample values which implies lower bit rate.

DPCM is form of predictive coding

Answer: D) DPCM

Reference: http://einstein.informatik.uni-oldenburg.de/rechnernetze/dpcm.htm

chahat bansal answered Oct 24, 2017

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