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Allpass Filters
Used extensively in
artificial reverberation
Can be ``vectorized'' like
comb filters
(Gerzon '76)
Transfer function
:
To obtain an
allpass filter
, set
Proof:
Subsections
First-Order Allpass Filter
Nested Allpass Filters
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Download
Delay.pdf
Download
Delay_2up.pdf
Download
Delay_4up.pdf
``
Computational Acoustic Modeling with Digital Delay
'', by
Julius O. Smith III
and
Nelson Lee
,
REALSIMPLE
Project — work supported by the
Wallenberg Global Learning Network
.
Released
2008-06-05
under the
Creative Commons License (Attribution 2.5)
, by
Julius O. Smith
III and Nelson Lee
Center for Computer Research in Music and Acoustics (CCRMA),
Stanford University