Question

Which block or device does the data compression?

(a) Channel encoder

(b) Source encoder

(c) Modulator

(d) None of the mentioned

I have been asked this question during an interview.

The above asked question is from Digital Communication Signal Processing topic in section Signals and Spectra of Digital Communications

Answer 1

Correct choice is (b) Source encoder

To explain I would say: Source encoder converts the digital or analog signal to a sequence of binary digits. This process is called as source encoding or compression.