Puppy Linux Discussion Forum

mini-jaguar · Joined: 13 Nov 2008 Posts: 460

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?

Flash · Posted: 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.

mini-jaguar · Joined: 13 Nov 2008 Posts: 460

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

muggins · Joined: 20 Jan 2006 Posts: 6666 Location: lisbon

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?

Flash · Posted: 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".

mini-jaguar · Joined: 13 Nov 2008 Posts: 460

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).