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Time Frequency Toolbox >> Time Frequency Toolbox > Time-Frequency representations (C - Toolbox) > Ctfrstft

Ctfrstft

Short time Fourier transform

Calling Sequence

[STFT,T,F,NORM] = Ctfrstft(X);
[STFT,T,F,NORM] = Ctfrstft(X,T);
[STFT,T,F,NORM] = Ctfrstft(X,T,N);
[STFT,T,F,NORM] = Ctfrstft(X,T,N,H);

Parameters

X :

signal for which the STFT is computed

T :

time instant(s) (default : 1:length(X)).

N :

number of frequency bins (default : length(X)).

H :

frequency smoothing window (default : Hamming(N/4)).

STFT :

Computed Short time Fourier Transform

F :

Vector of frequency bins

NORM :

Vector of normalization applied at each time instant

Example :

x = hilbert(sin(2*%pi*0.25*(1:

128))+0.5*rand(1,128,'normal'));

[stft,T,F] = Ctfrstft(x,1:

128,128);

See also

Authors

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