6 results for tags
filter x
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S/FILSYN filter design software
George Szentirmai's S/FILSYN is now freely available (as Windows executable).Wed Sep 15 15:54:38 2021 - permalink -
Found via https://en.wikipedia.org/wiki/Lattice_and_bridged-T_equalizers#cite_note-37- http://www.alkeng.com/sfilsyn.html
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C. R. Bond's site
Found via the Wikipedia page about Optimum "L" filtersMon Mar 22 19:19:22 2021 - permalink -
https://en.wikipedia.org/wiki/Optimum_%22L%22_filter- http://www.crbond.com
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gmeteor Home Page
gmeteor is a tool for designing discrete-time equiripple filters with linear phase and a finite impulse response (FIR). With gmeteor, you can design filters with an arbitrary frequency response. `gmeteor' runs on systems that support the Guile extension language from the GNU project (for example, GNU systems running on a Linux kernel). `gmeteor' is free software distributed under the terms of the GNU General Public License (GPL).Mon Aug 13 15:36:07 2012 - permalink -- http://gmeteor.sourceforge.net/index.html
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Spectral Audio Signal Processing
Looks like an interesting book. The online version has lots of annoying advertisements, automatic(?) links (e.g. Octave points to the Wikipedia article about the frequency ratio, whereas the text refers to the free Matlab-like language) and "tool tips". A hardcopy version is announced for March.Thu Apr 2 21:00:15 2009 - permalink -- http://www.dsprelated.com/dspbooks/sasp/
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maildrop - mail delivery agent with filtering abilities
Claimed to be easier to use than procmail (on the gnus newsgroup).Tue Aug 21 14:46:43 2007 - permalink -- http://www.courier-mta.org/maildrop/
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Tony Fisher's Home Page
A nice page of the late Tony Fisher, has interactive tools to design analogue (LC, Butterworth and Chebyshev) and digital (IIR, including Bessel and an additional stopband zero and FIR) and PLL loop filters. The tool (source code is available) also geneTue Feb 13 20:17:47 2007 - permalink -- http://www-users.cs.york.ac.uk/~fisher/