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 Forum index » Advanced Topics » Additional Software (PETs, n' stuff) » REQUESTS
Butterworth filter for 4.3.1? [solved]
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mini-jaguar

Joined: 13 Nov 2008
Posts: 462

PostPosted: Sat 03 Nov 2012, 06:54    Post_subject:  Butterworth filter for 4.3.1? [solved]  

It's a low pass filter, and I have it on some Puppies, it gets installed as some dependencies, although I'm not sure what packages installed this.

Is it available in some .pet for 4.3.1?

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Flash
Official Dog Handler


Joined: 04 May 2005
Posts: 11069
Location: Arizona USA

PostPosted: Sat 03 Nov 2012, 10:07    Post_subject:  

Do you know where such a program can be found in any form? If you can give a URL where it can be found, someone will probably be glad to compile it and make it into a .pet for you.
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mini-jaguar

Joined: 13 Nov 2008
Posts: 462

PostPosted: Sun 04 Nov 2012, 15:34    Post_subject:  

It's more of an audio plug-in.

I guess this is pretty close, although it's not exactly the same filters: http://users.suse.com/~mana/ladspa.html
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muggins

Joined: 20 Jan 2006
Posts: 6687
Location: lisbon

PostPosted: Tue 06 Nov 2012, 17:54    Post_subject:  

Sorry mini-jaguar,

but i'm still none the wiser...i thought this would be a hware thingy, but can imagine it could be implemented in sware. you say you've had it in other
pupversions...can you give any more clues?
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Flash
Official Dog Handler


Joined: 04 May 2005
Posts: 11069
Location: Arizona USA

PostPosted: Tue 06 Nov 2012, 22:03    Post_subject:  

I know that a Butterworth filter can be implemented in software. I don't know how though. Laughing It shouldn't be too hard to find programs. They may have a lot of variables that have to be defined.
Here's one page I found when I googled "Butterworth filter programs for Linux".
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mini-jaguar

Joined: 13 Nov 2008
Posts: 462

PostPosted: Mon 12 Nov 2012, 11:44    Post_subject:  

O.k., I figured it out.

The Butterworth filters are SoX effects, there's a sox .pet in ibiblio in the Puppy 4 section, for example.

The ladspa effects (similar filters, just not the same ones) can be installed with a .pet like this one: http://www.murga-linux.com/puppy/viewtopic.php?p=323649#323649 or you can even copy the ladspa folder from another puppy into /usr/lib.

But here's the catch: the mhwaveedit 1.4.16 included in 4.3.1 will not see either sox or ladspa effects. You have to update to 1.4.21. I was hoping not to have to do this because .20 and .21 crash a lot (although it's not that bad because they have a very good recovery system).
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