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Overlap-Save Method

The classical overlap-save method [198,277], unlike OLA, uses no zero padding to prevent time aliasing. Instead, it

(1)
discards output samples corrupted by time aliasing each frame, and
(2)
overlaps the input frames by the same amount.

More specifically:

The name ``overlap-save'' comes from the fact that $ L-1$ samples of the previous frame are ``saved'' for computing the next frame.


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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