Difference between revisions of "Ladspa Plug-ins"
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===Linux=== | ===Linux=== | ||
Nothing special is needed for using LADSPA plug-ins for Audacity on Linux. It's usually most convenient to place your LADSPA plugsin in: | Nothing special is needed for using LADSPA plug-ins for Audacity on Linux. It's usually most convenient to place your LADSPA plugsin in: | ||
| − | * | + | * {{path|/usr/lib/ladspa}} |
| + | * {{path|/usr/local/lib/ladspa}} | ||
| + | * {{path|$LIBDIR/ladspa}} | ||
* {{path|$INSTALL_PREFIX/ladspa}} | * {{path|$INSTALL_PREFIX/ladspa}} | ||
| − | * | + | * any colon-delimited path specified by the {{path|LADSPA_PATH}} environment variable |
| − | + | ||
| − | |||
Then restart Audacity and the plug-ins should be in the {{menu|Effect}} menu, underneath the divider. | Then restart Audacity and the plug-ins should be in the {{menu|Effect}} menu, underneath the divider. | ||
| − | If you have the ladspa-sdk installed, you can run '''listplugins''' from a terminal to list all plug-ins in your LADSPA_PATH. | + | If you have the ladspa-sdk installed, you can run '''listplugins''' from a terminal to list all plug-ins in your {{path|LADSPA_PATH}}. |
{{Hint|Advanced users on Linux can compile the latest Audacity Beta [http://audacity.sourceforge.net/community/developers#svn development code] and enable [[LV2_Support/Project_Docs|experimental support]] for [http://lv2plug.in/ LV2]. This is an extensible, "second-generation" version of LADSPA that has a wider range of effects, can use LV2 synthesizer plug-ins as powerful tone generators, and supports effect categorisation.}} <br> | {{Hint|Advanced users on Linux can compile the latest Audacity Beta [http://audacity.sourceforge.net/community/developers#svn development code] and enable [[LV2_Support/Project_Docs|experimental support]] for [http://lv2plug.in/ LV2]. This is an extensible, "second-generation" version of LADSPA that has a wider range of effects, can use LV2 synthesizer plug-ins as powerful tone generators, and supports effect categorisation.}} <br> | ||
Revision as of 19:40, 27 January 2011
| LADSPA (Linux Audio Developers Simple Plugin API) is an audio plug-in standard originally developed on Linux, but which can be ported to Windows and Mac too. Audacity has built-in support for LADSPA plug-ins.
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Related article(s):
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Writing LADPSA plug-ins
Audacity behaves as an excellent LADSPA host. Just read up about LADSPA, and make your plug-ins correctly. As a starting point, look at the LADSPA developers' documentation and the LADSPA site's example plug-ins. Keep in mind that Audacity "runs" the plug-in multiple times with some specific number of samples. So, don't assume that your plug-in will get the entire selection the first time. Here is an example LADSPA plug-in made by a user for plotting frequency variation.
Using LADSPA plug-ins
Linux
Nothing special is needed for using LADSPA plug-ins for Audacity on Linux. It's usually most convenient to place your LADSPA plugsin in:
- /usr/lib/ladspa
- /usr/local/lib/ladspa
- $LIBDIR/ladspa
- $INSTALL_PREFIX/ladspa
- any colon-delimited path specified by the LADSPA_PATH environment variable
Then restart Audacity and the plug-ins should be in the menu, underneath the divider.
If you have the ladspa-sdk installed, you can run listplugins from a terminal to list all plug-ins in your LADSPA_PATH.
Windows and Mac OS
Audacity also supports LADSPA plug-ins on Windows and Mac OS. Any LADSPA plug-in compiled as a Windows .dll or Mac .dylib shared library will work on these platforms. An extensive set of LADSPA plug-ins is available for Windows and Mac OS X.
To add LADSPA plug-ins to Audacity, place them in the Plug-Ins folder inside the Audacity installation folder. Restart Audacity and the plug-ins should be in the menu, underneath the divider. The Audacity installation folder is usually under C:\Program Files on Windows, or under Mac Hard Disk > Applications on OS X.
As on Linux, Audacity will also detect LADSPA plug-ins if you put them in a folder specified in the LADSPA_PATH environment variable.
