Difference between revisions of "Ladspa Plug-ins"
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Galeandrews (talk | contribs) (Tidy up paths on Linux (Audacity does not see plug-ins in $HOME/.ladspa/) ; add Intro and LV2 link) |
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| − | ''' | + | {{Introrel|1=[http://en.wikipedia.org/wiki/LADSPA LADSPA] ('''L'''inux '''A'''udio '''D'''evelopers '''S'''imple '''P'''lugin '''A'''PI) is an audio plug-in standard originally developed on Linux, but which can be ported to Windows and Mac too. Audacity has built-in support for LADSPA plug-ins.|2=|3=[[Nyquist Plug-ins]] |
| + | *[[VST Plug-ins]] | ||
| + | *Other pages in our [[:Category:Plug-ins|Plug-ins category]]}} | ||
| − | |||
| − | + | __TOC__ | |
| − | ''' | + | ==Writing LADPSA plug-ins== |
| + | Audacity behaves as an excellent LADSPA host. Just read up about LADSPA, and make your plug-ins correctly. As a starting point, look at the [http://gdam.ffem.org/ladspa-doc/ladspa.html LADSPA developers' documentation] and the LADSPA site's [http://www.ladspa.org example plug-ins]. Keep in mind that Audacity "runs" the plug-in multiple times with some specific number of samples. So, don't assume that your plug-in will get the entire selection the first time. Here is an [http://www.it.iitb.ac.in/~chetanv/personal/acads/musicology/project/ example LADSPA plug-in] made by a user for plotting frequency variation. | ||
| − | + | ==Using LADSPA plug-ins== | |
| + | ===Linux=== | ||
| + | Nothing special is needed for using LADSPA plug-ins for Audacity on Linux. It's usually most convenient to place your LADSPA plugsin in: | ||
| + | * any colon-delimited path specified by the {{path|LADSPA_PATH environment variable}} | ||
| + | * {{path|$INSTALL_PREFIX/ladspa}} | ||
| + | * {{path|/usr/local/lib/ladspa}} | ||
| + | * {{path|$LIBDIR/ladspa}} | ||
| + | |||
| + | 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. | |
| − | + | {{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> | |
| + | |||
| + | ===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 [http://audacity.sourceforge.net/beta/ladspa/ladspa-0.4.15.exe Windows] and [http://ardour.org/files/releases/swh-plugins-0.4.15.dmg 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|Effect}} menu, underneath the divider. The Audacity installation folder is usually under {{path|C:\Program Files}} on Windows, or under {{path|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 {{path|LADSPA_PATH environment variable}}. | ||
[[Category:Plug-ins]] | [[Category:Plug-ins]] | ||
Revision as of 23:58, 26 November 2010
| 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:
- any colon-delimited path specified by the LADSPA_PATH environment variable
- $INSTALL_PREFIX/ladspa
- /usr/local/lib/ladspa
- $LIBDIR/ladspa
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.
