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===Extending overlap–save===
The overlap–save algorithm
|[[#refCarlin|Carlin et al. 1999]], p 31, col 20.
}}<ref>{{Citation |last=Borgerding |first=Mark |title=Turning Overlap–Save into a Multiband Mixing, Downsampling Filter Bank |journal=IEEE Signal Processing Magazine |issue= March 2006 |pages=158–161 |year=2006 |url=http://www.3db-labs.com/01598092_MultibandFilterbank.pdf}}</ref>
* additional IFFT channels can be processed more cheaply than the first by reusing the forward FFT
* sampling rates can be changed by using different sized forward and inverse FFTs
* frequency translation (mixing) can be accomplished by rearranging frequency bins
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