Good resources The DFT “à Pied”: Mastering The Fourier Transform in One Day http://code.compartmental.net/tools/minim/manual-fft/ http://music.columbia.edu/cmc/musicandcomputers/chapter3/03_05.php FFT Software Libraries Kiss FFT Using FFT For An Audio Spectrum Analyzer Special terms: 'Nyquist frequency' = half of the sampling rate of a discrete signal processing system 'Bin width' = the width of each sample position in Hz Basic FFT […]