1. In MATLAB, write your OWN Lowpass Filter function which will take a .wav audio file and filter it. a) All functions used must be your own except for the use of the FFT b) You should have a plot...

1. In MATLAB, write your OWN Lowpass Filter function which will take a .wav audio file and filter it.

a) All functions used must be your own except for the use of the FFT

b) You should have a plot which compares the FFT data of the .wav before and after filtering