Differential Pulse Code modulation (DPCM) characteristics are: (tick any two )Select one or more:a. Redundancy is reduced with imcrement of bit rateb. Number of bit transmit one sample will also reducedc. Redundancy is reduced with decrement of bit rated. Number of bit transmit one sample will also increased
Question
Differential Pulse Code modulation (DPCM) characteristics are: (tick any two )Select one or more:a. Redundancy is reduced with imcrement of bit rateb. Number of bit transmit one sample will also reducedc. Redundancy is reduced with decrement of bit rated. Number of bit transmit one sample will also increased
Solution
The correct answers are:
a. Redundancy is reduced with increment of bit rate c. Redundancy is reduced with decrement of bit rate
Explanation:
Differential Pulse Code Modulation (DPCM) is a signal encoder that uses the baseline of Pulse Code Modulation (PCM) but adds some functionalities based on the prediction of the samples and the difference between them.
a. Redundancy is reduced with increment of bit rate: This is true because as the bit rate increases, the amount of data that can be transmitted in a given amount of time also increases. This reduces the need for redundant data.
c. Redundancy is reduced with decrement of bit rate: This is also true. When the bit rate decreases, the amount of data that can be transmitted in a given amount of time decreases. This forces the system to reduce redundancy in order to transmit as much unique data as possible.
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