scipy.signal.ShortTimeFFT.

scale_to

ShortTimeFFT.scale_to(scaling)

Scale window to obtain ‘magnitude’ or ‘psd’ scaling for the STFT.

The window of a ‘magnitude’ spectrum has an integral of one, i.e., unit area for non-negative windows. This ensures that absolute the values of spectrum does not change if the length of the window changes (given the input signal is stationary).

To represent the power spectral density (‘psd’) for varying length windows the area of the absolute square of the window needs to be unity.

The scaling property shows the current scaling. The properties fac_magnitude and fac_psd show the scaling factors required to scale the STFT values to a magnitude or a psd spectrum.

Note that a window cannot to be scaled to be unitary. Use from_win_equals_dual to create a unitary ShortTimeFFT instance.

This method is called, if the initializer parameter scale_to is set.

See also

fac_magnitude

Scaling factor for to a magnitude spectrum.

fac_psd

Scaling factor for to a power spectral density spectrum.

fft_mode

Mode of utilized FFT

scaling

Normalization applied to the window function.

ShortTimeFFT

Class this method belongs to.