Noun
STFT (plural STFTs)
(mathematics) Initialism of short-time Fourier transform.
Hypernym: FT
All STFT basis elements maintain a uniform spectral and temporal support for all temporal shifts or offsets, thereby attaining an equal resolution in time for lower and higher frequencies. Source: Internet
The Short-time Fourier transform (STFT) is similar to the wavelet transform, in that it is also time and frequency localized, but there are issues with the frequency/time resolution trade-off. Source: Internet
The time-frequency atoms are four different basis functions used for the STFT (i.e. four separate Fourier transforms required). Source: Internet