Question: Repeat Exercise 12.19 using the modified-sinc structure as building block. Exercise 12.19 Design a lowpass filter using the prefilter and interpolation methods satisfying the following

Repeat Exercise 12.19 using the modified-sinc structure as building block.

Exercise 12.19

Design a lowpass filter using the prefilter and interpolation methods satisfying the following specifications:

\[\begin{aligned}A_{\mathrm{p}} & =0.8 \mathrm{~dB} \\A_{\mathrm{r}} & =40 \mathrm{~dB} \\\Omega_{\mathrm{p}} & =4500 \mathrm{~Hz} \\\Omega_{\mathrm{r}} & =5200 \mathrm{~Hz} \\\Omega_{\mathrm{s}} & =12000 \mathrm{~Hz} .\end{aligned}\]

Compare the required number of multiplications per output sample in each design.

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