From today morning i am trying to obtain the Spectrum analyzer of a discrete signal and I had some problems. I tell you whatâs going wrong. If I compute on a PC the discrete fourier transform (FFT or DFT) I obtain valid fourier transforms but how do I analyze a wave obtained using a microphone? I don’t get the same results professional programs do as I tried using as the “intensity” of a frequency the magnitude. What can be done to a spectrum analyzer problem?
