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COLA Examples
A length
rectangular window is obviously
(50% overlap) when
is even
, when 3 divides
(``
'')
,
=
...
Bartlett window
is similarly
,
Generalized
Hamming windows
also
(but check endpoints!)
Any window that is
is
, for
, provided
is an integer (
)
See argument
'
periodic
'
for
Matlab
windows.
COLA
property important for
FFT
processors
Not so critical for spectral display over time
Every window is
(``sliding FFT'' case)
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[Comment on this page via email]
``
Lecture 6: Time-Frequency Display
'', 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]