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STFT, Rectangular Window, 50% Overlap

Reducing the hop size to half the window length greatly reduces the amount of aliasing in the filter-bank output signals8.3.1). Recall that this happens because the folding frequency due to downsampling (by the hop size) doubles to coincide with the first zero-crossing of the window transform.


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``Spectral Audio Signal Processing'', by Julius O. Smith III, W3K Publishing, 2011, ISBN 978-0-9745607-3-1.
Copyright © 2016-07-18 by Julius O. Smith III
Center for Computer Research in Music and Acoustics (CCRMA),   Stanford University
CCRMA