![]() (This actually means that the discrete signal can capture a higher range of frequencies, namely from 0 to fs/2 Hz according to the Nyquist rule) ![]() 1Hz means one sample per second, so obviously higher sampling frequencies mean more samples per second and therefore better signal quality. Typical sampling frequencies are 8KHz, 16KHz and 44.1KHz. We use the sampling frequency (fs = 1/Ts) as the attribute that describes the sampling process. The interval between two successive discrete samples is the sampling period (Ts). ![]() Sampling is used to convert the time-varying continuous signal x(t) to a discrete sequence of real numbers x(n). This analog to digital conversion includes two processes: sampling and quantization. Similarly to images and videos, sound is an analog signal that has to be transformed to a digital signal, in order to be stored in computers and analyzed by software.
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