The picture below is an example answer.

(MATLAB)

The music signals x1(t), x2(t), x3(t) are sampled at 8 kHz and are given as filel.mat, file2.mat, file3.mat, respectively. Solve the following problems 1-6. 1. Load the music signal xi(t) in MATLAB and listen to the signal using the sound() function. Then, perform sampling for xi(t) when the sampling rate is 4 kHz and 2 kHz, respectively. Plot the sampled signals x1