Question: What is quantization in the context of digital signal processing?

Options:

1. The process of sampling a signal
2. The process of converting a continuous signal into a discrete signal
3. The process of rounding off values to a finite set of levels
4. The process of filtering a signal

Correct Answer: The process of rounding off values to a finite set of levels

Solution:

Quantization is the process of mapping a continuous range of values into a finite range of discrete values.