How do I make audacity find/recognize ladspa plugins?

English Multimedia
1

I’m sure this is a painfully naive question, but I don’t suppose it can possibly lower my reputation…

For Good Reasons, I use a custom build of the audio editor audacity rather than the version in the openSUSE repositories. What I can’t seem to figure out is how to get it to find and load the LADSPA signal processing plug-ins. I have the regulation ladspa libraries (1.13-6.2) from the Oss repository installed. The files reside at /usr/lib64/ladspa . audacity is built with ladpsa support enabled, and indeed reports that it is enabled if I look at the Effects tab under preferences. I have even entered the ladspa library path in a “ladspa.conf” file under /etc/ld/so.conf.d, which may or may not help. Regardless, I don’t seem to see the ladpsa effects listed when I run audacity.

What am I missing here?

tnx

maab

2

Hi
You need to install the packman version(s) and use those…

–
Cheers Malcolm °¿° (Linux Counter #276890)
openSUSE 11.4 (x86_64) Kernel 2.6.37.6-0.7-desktop
up 1 day 4:33, 3 users, load average: 0.09, 0.07, 0.06
GPU GeForce 8600 GTS Silent - Driver Version: 280.13

3

Except for downgrading the version of ladspa, that doesn’t seem to change anything.

maab

4

Hi
If you do a search;


zypper se ladspa

You will see a plethora to install…

5

As it turns out, I can get the plug-ins to work if I go in and manually add symbolic links to each and every desired ladspa plug-in in the
/usr/local/share/audacity/plug-ins
directory, but this seems awfully clumsy.

Is there some place in the source configuration process where I should be adding the ladspa library path?

maabaum

6

Is there some place in the source configuration process where I should be adding the ladspa library path?

Never mind, I realize this is devolving into a discussion about audacity internals, not openSUSE. I’ll take it to the audacity forum.

maabaum

7

Hi
You would need to configure your audacity build with the --prefix=/usr
so it would install in the normal openSUSE FSH.

–
Cheers Malcolm °¿° (Linux Counter #276890)
openSUSE 11.4 (x86_64) Kernel 2.6.37.6-0.7-desktop
up 1 day 22:43, 3 users, load average: 0.32, 0.17, 0.16
GPU GeForce 8600 GTS Silent - Driver Version: 280.13

8

From the sources:

   pathVar = wxGetenv(wxT("LADSPA_PATH"));
   if (pathVar != wxT(""))
      wxGetApp().AddMultiPathsToPathList(pathVar, pathList);

   #ifdef __WXGTK__
   wxGetApp().AddUniquePathToPathList(wxT(INSTALL_PREFIX) wxT("/ladspa"), pathList);
   wxGetApp().AddUniquePathToPathList(wxT("/usr/local/lib/ladspa"), pathList);
   wxGetApp().AddUniquePathToPathList(wxT(LIBDIR) wxT("/ladspa"), pathList);
   #endif

So you can either set the LADSPA_PATH environment variable or use the configure “–libdir” option to make it search in /usr/lib64/ladspa/ instead of in /usr/lib/ladspa/.

9

Hi,

I just saw this article on the LAU list, it might be of interest: The Architecture of Open Source Applications: Audacity

Cheers

10

I had the same problem. This is how to set the LADSPA_ENVIRONMENT:
Edit /etc/environment
and add this line for a 64 bit system for 32 bit adjust the path accordingly

LADSPA_PATH=/usr/lib64/ladspa

Do not prefix it with words like (PATH or Set) in fact do not prefix the line with anything.
Reboot and check that the path is set properly in a terminal, type: listplugins
The list of the plugins will be listed in the terminal window.

11

I presume it is like with most things, that openSUSE has its ways of organising the library files and other Linux distroes may have other ways.

Audacity and LADSPA works fine for me, but I only use either the Packman built or the one from -oss; there was, and is for some other software packages, some issues with paths for 64bit environment versions but Audacity (from either of those repoes) should work fine now.