Is it possible to get digital data(8 bit conversion) of the following imported file & get fft of that digital data?What would be the code for it?

Analog to digital conversion and FFT

Answer 1

[Walter Roberson]

cur_data = importdata('current.txt');
cur = cur_data.data(:,2);
cur_8bit = round(cur ./ max(cur) * 255);

result = fft(cur_8bit);