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Engineering · Electrical Engineering
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[30] Choose an audio file of your choice (ie. song, music, speech, etc.) and crop its length to 10 seconds. Using matlab, find the following: 4. a. Plot the audio signal x(t) in the time domain b. Find the FFT of the signal x(t) and plot its magnitude and phase values. c. Add cos(100000*pit) to the signal in part a.to obtain the new signal yt)ext+cos(100000*pit). d. Find the FFT of the signal y(t) and plot its magnitude and phase values. e. Observe the difference in plots obtained in parts b. and c.
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