Digital Sound & Music: Concepts, Applications, & Science, Chapter 2, last updated 6/25/2013
Figure 2.55 Audio data after application of Hamming windowing function
Notice that the ends of the segment are tapered toward 0.
Figure 2.56 compares the FFT results with no windowing function vs. with the Hamming
windowing function applied. The windowing function eliminates some of the high frequency
components that are caused by spectral leakage.
axis([0 300 0 60]);
Figure 2.56 Comparing FFT results with and without windowing function