I am designing a notch filter that removes unwanted frequencies at 60, 120 and 180 Hz for a VoIP call sampled at 180000 kHz. Here is my filter implemented in Scilab.
clc; clear; close;
fs = 16000;
F = [60, 120, 180];
BW = 3;
Nsec = length(F);
bmat = zeros(Nsec,3);
amat = zeros(Nsec,3)...