How do I use LADSPA with NMM?

(1) setup the environment variable LADSPA_PATH; otherwise no LADSPA plugins were found 
    by the LADSPANode.
    there are som LADSPA plugins in <nmm_base_path>/lib/ladspa
    
(2) in the directory <nmm_base_path>/resources exists a XML file named
    LADSPAPlugin_presets.xml containing presets for some plugins. It is
    possible to create additional 'profiles'. To create a new profile, simple copy 
    another profile for the plugin of choice and change the values between the
    <ControlIn> and </ControlIn> tags. 
    the default profile is set up to make the plugins my appear neutral.
    
(3) there is a graph description (mp3ladspa.gd). Additional parameters are 1 or more
    mp3 encoded file(s). 