Oct 27, 2008 #1 F frank_davis Newbie level 1 Joined Oct 26, 2008 Messages 1 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,287 Hi everyone, I have a very basic question here. Is there a difference between the FFT and PSD of a signal? If so, what is the difference and which one should be used to look at the partials of a musical note? Thanks.
Hi everyone, I have a very basic question here. Is there a difference between the FFT and PSD of a signal? If so, what is the difference and which one should be used to look at the partials of a musical note? Thanks.
Nov 4, 2008 #2 G gowthamn Member level 3 Joined Apr 6, 2006 Messages 60 Helped 3 Reputation 6 Reaction score 2 Trophy points 1,288 Activity points 1,645 psd fft PSD of signal is computed as square of FFT of given signal. U should use PSD in case if u are doing some analysis or filtering the signal.
psd fft PSD of signal is computed as square of FFT of given signal. U should use PSD in case if u are doing some analysis or filtering the signal.
Nov 11, 2008 #3 R ring0 Member level 3 Joined Nov 10, 2008 Messages 60 Helped 5 Reputation 10 Reaction score 0 Trophy points 1,286 Location Moscow, Russia Activity points 1,606 fft to psd Also, power spectral density is used for random processes, where conventional Fourier transform can't be applied.
fft to psd Also, power spectral density is used for random processes, where conventional Fourier transform can't be applied.