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MATH08013: An 8-point signal π‘₯[𝑛] is shown in Figure 2: Maths Assignment, UCC, Ireland

University University College Cork (UCC)
Subject MATH08013: Maths Assignment
Question 5
An 8point signal π‘₯[𝑛] is shown in Figure 2.
 MATH08013: Maths Assignment
i. Using MATLAB compute DFT of 𝑦[𝑛] = π‘₯[𝑛 + 1] i.e., π‘Œ[π‘˜].

ii. Plot DFT magnitude and phase as functions of k.
iii.
Compute and plot the IDFT of π‘Œ[π‘˜].

Question 6
Record the audio for first three letters of your name. e.g., M A H for MAHMOOD
i. Save this audio file on MATLAB in vector x and plot vector x using plot(t, x). where t is time.
ii.
Perform DFT on vector x, using fft command in MATLAB and plot the amplitude spectrum.
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