ShortTimeFourier

ShortTimeFourier[data] returns the short-time Fourier transform (STFT) of data as a ShortTimeFourierData object.

ShortTimeFourier[data,n] uses partitions of length n.

ShortTimeFourier[data,n,d] uses partitions with offset d.

ShortTimeFourier[data,n,d,wfun] applies a smoothing window wfun to each partition.

ShortTimeFourier[data,n,d,wfun,m] pads partitions with zeros to length m prior to the computation of the transform.

Examples

Compute the short-time Fourier transform:

data = Table[Sin[n/10] + Sin[n/20], {n, 1000}];
stft = ShortTimeFourier[data]
(* ShortTimeFourierData[...] *)

Please visit the official Wolfram Language Reference for more details.