Sampling Rate

Sampling rate is the number of times per second that an analog audio signal is sampled or "measured", at discrete intervals of time, during processing (original recording and A to D conversion).

Sampling frequency is the rate at which an analog signal is sampled into a digital signal consisting of digital samples and is usually measured in hertz, or samples per second.

Higher frequencies imply higher-quality sampling, that is, the higher the sampling frequency, the greater the frequency content of the source material that can be accurately represented in the recording.

8000 Hz Telephone
22050 Hz Better than FM Radio
44100 Hz CD (compact disk)
96000 Hz DVD Audio and Super Audio CD