LMMS - Can't find "Declipper" effect

satk0 · September 19, 2026, 9:46pm

I can’t find “Declipper” effect in LMMS. It should be available to add in Mixer tab, but it’s not:

For the AppImage version of LMMS the effect is present. The packages that I’ve installed are these:

lmms-full
ladspaPlugins
caps

Do you happen to know what I do wrong? Thanks in advance

withakay · September 19, 2026, 11:55pm

I think it’s related to making them visible to one another, either using an environment variable or a conserved path in the environment. Some quick searching suggests LADSPA_PATH or maybe using environment.pathsToLink depending on your needs, but I’m not really sure. Hope it’s a helpful direction.

Here’s someone who sets a number of different env variables for plugins, it seems:

github.com/iamthememory/dotfiles

home/media/sound/dev.nix

9504b191a


      
          # A host for audio plugins.
          carla
          
          # A synthesizer.
          fluidsynth
          
          # A sampler.
          linuxsampler
          
          # A digital audio workstation.
          lmms
          
          # A tool to control a running JACK session and its connections.
          qjackctl
          
          # A synthesizer.
          qsynth
          
          # A set of tools for low-level editing of sound files.
          sox

satk0 · September 20, 2026, 12:35pm

It worked, thanks a lot. I wonder whether I should make a whole guide out of installing LMMS on NixOS (enabling Windows vst plugins etc.), cuz I haven’t seen one.