The experiment was based Sampling frequency is the frequency of the signal at any time. There will be 2x or more the frequency is the maximum frequency of the input signal frequency is called the Nyquist frequency, that if Sampling frequency is less than. The highest frequency of the input signal Will cause the loss of signal waveform that has a feature called Aliasing artifact caused by the set of sampling set a sample to read, which is set to be 2x that of the input signal