stft

Computes the short time Fourier transform

auto stft(Xs xs, size_t nperseg, size_t noverlap)
auto
stft
(
alias windowFun = hann
Xs
)
(
Xs xs
,
size_t nperseg
,
size_t noverlap
)
if (
isSlice!Xs &&
DimensionCount!Xs == 1
)
out (ret) { static assert (DimensionCount!(typeof(return)) == 2); assert (ret.length!1 == nperseg); }
auto stft(Xs xs, size_t nperseg)

Parameters

xs Xs: input 1d slice with the shape (ntimes,)
nperseg size_t: (default 256) short-time frame width for each FFT segment
noverlap size_t: (default nperseg / 2) short-time frame overlapped length for each FFT segment

Return Value

Type: auto

comlex 2d slice (nframes, nfreqs=nperseg)

See Also

https://docs.scipy.org/doc/scipy/reference/generated/scipy.signal.stft.html

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Source

See Implementation

numir signal functions