Spectrogram Time Frequency distribution of a signal X
[SP,T,F,norm] = Ctfrsp(X) [SP,T,F,norm] = Ctfrsp(X, T) [SP,T,F,norm] = Ctfrsp(X, T, N) [SP,T,F,norm] = Ctfrsp(X, T, N, H)
Analyzed signal
the time instant(s) (default : 1:length(X)).
number of frequency bins (default : length(X)).
frequency smoothing window, (default : Hamming(N/4)).
Spectrogram
Vector of frequency bins
Vector of normalization applied at each time instant
Computes the spectrogram of a signal X