Windowing process, STFT

In the context of STFT, windowing is the process whereby shorter portions of a sampled sound are detached for FFT analysis (Figure 3.4). The windowing process must be sequential, but the windows may overlap (Figure 3.5). The effectiveness of the STFT process depends... 

Fig. 9.8. Time-frequency plane described by the STFT. The analysis can be viewed as a series of FTs defined on windowed segments of the signal (vertical bars) or as a filtering process implemented with a bandpass filter-bank (horizontal bars).

Figure 3.4 Windowing is a process in STFT whereby shorter portions of the sound are detached for FFT analysis...

The resynthesis by Fourier analysis reversion method (sometimes referred to as overlap-add resynthesis) takes the information from each frame of the STFT analysis and recreates an approximation of the original sound window by window. This process works well for those... 

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