Differential Pulse Code modulation (DPCM) characteristics are: (tick any two )Select one or more:a. Number of bit transmit one sample will also reducedb. Redundancy is reduced with imcrement of bit ratec. Number of bit transmit one sample will also increasedd. Redundancy is reduced with decrement of bit rate
Question
Differential Pulse Code modulation (DPCM) characteristics are: (tick any two )Select one or more:a. Number of bit transmit one sample will also reducedb. Redundancy is reduced with imcrement of bit ratec. Number of bit transmit one sample will also increasedd. Redundancy is reduced with decrement of bit rate
Solution
The correct answers are:
a. Number of bit transmit one sample will also reduced b. Redundancy is reduced with increment 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 of the signal.
a. In DPCM, instead of sending a full sample, it often sends a difference value based on the prediction, which can often be represented with fewer bits. Hence, the number of bits to transmit one sample is reduced.
b. Redundancy is reduced with the increment of bit rate because as the bit rate increases, the amount of data that can be transmitted in a given amount of time also increases. This allows for more efficient use of the bandwidth, reducing the redundancy.
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