There are a few errors can be found in the code of Python language. Fix the code and show the graphs by changing any audio.wav to proof that correction is work. Full code: https://docs.google.com/document/d/1VPjlRgssIMfPp4xEP5wV3vG0ROLxXoos4oMMTjMoyVs/edit

The error are found in this given code: #------------------------------------------------------------------------------------------------------------ n=100 #Design filter b=signal.firwin(n, cutoff= 0.2, window = "hamming") #Plot properties plt.plot_filterz(c)

x = np.sin(np . linspace(0,500,1024))+0.5*np. cos(np. linspace(0,750,1024))+ np.random.randn(1024)*0.2 +0.2*np. cos(np.linspace(0, 10000, 1024)) xfiltered = signal.lfilter(b, 1, x)

plt.plot(x[:200], label = "Original signal") plt.plot(xfiltered[:200], "--k", label = "Filtered signal") plt.legend() plt.show() #------------------------------------------------------------------------------------------------------------