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signal.AdaptiveStft
Christian d'Heureuse edited this page Jun 6, 2026
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dsp-collection / signal/AdaptiveStft
Adaptive short-time fourier transform (ASTFT).
This module contains functions that improve the frequency resolution of the classic STFT by using a variable width window. While the frequency resolution does not get sharper by varying the window width, it allows the computation of finer intermediate frequency components than with the classical method.
| Interface | Description |
|---|---|
| ComponentResult | - |
| Function | Description |
|---|---|
| getHarmonicAmplitudes | Computes the amplitudes of the harmonic components for a specified fundamental frequency. |
| getSingle | A simplified version of getSingle_maxWindow(). |
| getSingle_maxWindow | Computes a variable width short time fourier transform for a single sine wave component, by optimally utilizing a given maximum window width. |
| getSingle_relWindow | Computes a short time fourier transform for a single sine wave component, by using a window size that corresponds to a fixed number of oscillation cycles. |