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Ideal Graphical Equalizers
PSF Dual:
-channel
equalizer
filter
banks can be made using
bandpass filters
having zero-crossings at multiples of
samples
All such
filter banks
sum to a constant
frequency response
when channel gains are equal
The PSF dual can be taken as the basis for the
Filter-Bank Summation
(FBS) interpretation of the
short-time Fourier transform
The FBS is precisely the Fourier dual of the OverLap-Add (OLA) interpretation
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[Comment on this page via email]
``
FFT Signal Processing: The Overlap-Add (OLA) Method for Fourier Analysis, Modification, and Resynthesis
'', by
Julius O. Smith III
, (From Lecture Overheads,
Music 421
).
Copyright ©
2020-06-27
by
Julius O. Smith III
Center for Computer Research in Music and Acoustics (CCRMA),
Stanford University
[Automatic-links disclaimer]