Interpolation Filters. Write a Matlab program to read and upsample the linked voice_samp_8k.wav file (below -- sampled...

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Electrical Engineering

Interpolation Filters. Write a Matlab program to read andupsample the linked voice_samp_8k.wav file (below --sampled at Fs=8000 samples per second) by an integer factor L (youcan choose, probably in the range from 3 to 7 or so). Then useinterpolation filtering to produce the following outputs and listento them and plot short segments (~50-100 samples) of these outputs:(i) upsample only with no interpolation filtering, (ii) holdinterpolation implemented directly as a causal FIR filter, (iii)linear interpolation implemented directly as a causal FIR filter,and two other designed FIR lowpass interpolation filtering with(iv) shorter (~20-200) FIR filters and (v) longer (~200-2000) FIRfilters that you design with fir1(). Verify that yourprogram is doing what you want by looking at plots of the variousoutputs. Also note any interesting observations.

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below is thematlab code forload chirpmat sound signalsoundy FsL 5 factorsysl interpyLsubplot 211plotygrid onxlabel Sample numberylabel Originalsubplot See Answer

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