Sampling rate is a defining characterstic of any digital signal.
In other words, it refers to how frequently the analog signal is
measured during the sampling process. Compact disks are recorded at
a sampling rate of 44.1 kHz.
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As we know that the sampling rate is two times of the highest
frequency (Nyquist theorm)
Sampling rate=2 Nyquist
fs=8000hz/8khz
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44.1kHz
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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.