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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?

Last edited by mini-jaguar on Mon 12 Nov 2012, 11:45; edited 1 time in total
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Flash
Official Dog Handler


Joined: 04 May 2005
Posts: 11164
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: 6690
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: 11164
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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