Use MATLAB to perform the following:

1) Record your voice for 2 seconds

2) Play and plot your recorded voice in time-domain

3) Take Fourier Transform of your voice

4) Plot your voice in frequency-domain

5) Create noise (high frequency noise) with multiple frequencies

x(t) = a₁ cos(w₁t) + a₂ cos(w₂t) + a3 cos(w3t)

6) Add the noise to your voice

7) Play & plot voice + noise in time-domain

8) Take Fourier Transform of voice + noise & plot signal in frequency-domain

9) Add a filter to suppress the noise

10) Play & plot filtered signal in time-domain

11) Take Fourier Transform of the filtered signal & plot it in frequency-domain