Question: 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

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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