Questions tagged [window]

Questions related to the use of window functions in analyses that involves fast Fourier transform (FFT), such as spectrograms and power spectrum density estimates.

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5 votes
0 answers
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Why divide by average of window when calculating spectrum of signal?

When creating the spectrum of a signal, I understand that applying a window function can help with spectral leakage to get a more accurate picture of the frequency distribution. But sometimes I've ...
12 votes
2 answers
392 views

What is the purpose of overlapping windows in acoustic signal processing?

When reading the methods sections of bioacoustics papers, I often see a window length and % overlap reported in the description of how the spectral analysis was done. What is the purpose of this? ...
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