(Answered) Question frequency response with freqz for the difference

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Question: Frequency Response with freqz For the difference equation (1-3), do the following frequency -domain computations:

a. Make plots of the magnitude and phase responses, with 512 frequency samples around the entire unit circle. For instance, use p lot (W, abs (H) or plot ( W, angle ( H) ) .

b. Now redo the frequency response using only the upper half of the unit circle (w ranges from O to n). Th is sufficient because of the symmetries in the magnitude and phase response, which you should have observed in part (a).

c. Specify the type of filter defined by this difference equation: high-pass, low-pass, all-pass, bandpass, or band stop.

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