Sampling rate vs frequency

1. Is sampling rate the same as frequency?
2. How does sampling rate relate to frequency?
3. Why is sampling rate twice frequency?
4. Does sample rate affect frequency response?

Is sampling rate the same as frequency?

Definition: Sampling rate or sampling frequency defines the number of samples per second (or per other unit) taken from a continuous signal to make a discrete or digital signal.

How does sampling rate relate to frequency?

sampling frequency. The sampling frequency (or sample rate) is the number of samples per second in a Sound. For example: if the sampling frequency is 44100 hertz, a recording with a duration of 60 seconds will contain 2,646,000 samples.

Why is sampling rate twice frequency?

If the signal contains high frequency components, we will need to sample at a higher rate to avoid losing information that is in the signal. In general, to preserve the full information in the signal, it is necessary to sample at twice the maximum frequency of the signal.

Does sample rate affect frequency response?

Sample rate affects the frequency response of the final recording or sample; the highest frequency that can accurately be sampled is 1/2 the sample rate. In general, the higher the sample rate, the better the sound quality.