Initial commit

testbench/fir-magn.m

@@ -0,0 +1,9 @@
+pkg load signal
+
+data = csvread("filtered.txt");
+data = data(8:length(data));
+spec = abs(fft(data ./ 32768));
+len = length(data);
+x = 1:len/2;
+
+plot(x ./ len, mag2db(spec(1:len/2)));