14 Aug
2004
14 Aug
'04
7:05 p.m.
On Sat, 14 Aug 2004 12:28:36 -0700
davidrclark(a)earthlink.net wrote:
From your web page, it *appears* that you are using
the sinc method
developed by Julius Smith of Stanford.
Basically yes.
Smith's method is very
fast, but not as accurate as FFT/overlap with large windows. Without
Kaiser windowing, it wouldn't have seen the light of day due to the
truncation effects.
I do use a Kaiser but unlike JOS, I optimize the beta value for
a number of factors that the JOS paper seems to neglect.
I need something that preserves the phase and
other information as accurately as possible between the channels,
not a small-windows approximation.
SRC preserves phase.
I need a guarantee of accuracy,
and I simply didn't have the time to fully investigate the sinc
method with Kaiser and other windows.
I have been meaning (at least since I first released SRC) to
write up some documentation on how SRC is tested, but I've
been a little busy doing other things :-).
That was probably a longer answer than you
anticipated, but I hope
I answered your question.
Yes, thanks very much.
Erik
--
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Erik de Castro Lopo nospam(a)mega-nerd.com (Yes it's valid)
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