Question

Explain the process of interpolation.

Answer 1

In the domain of digital signal processing, the term interpolation refers to the process of converting a sampled digital signal (such as a sampled audio signal) to that of a higher sampling rate (Upsampling) using various digital filtering techniques (e.g., convolution with a frequency-limited impulse signal).

Answer 2

Answer: Interpolation is the process of using points with known values or sample points to estimate values at other unknown points.