pipewire deesser using calf lv2 plugin

070-deesser.conf

context.modules = [
   {
    name = libpipewire-module-filter-chain
    flags = [ nofail ]
    args = {
      node.description = "Deesser source"
      media.name = "Deesser source"
      filter.graph = {
        nodes = [
          {
            type   = lv2
            name   = deesser
            label  = deesser
            plugin = "http://calf.sourceforge.net/plugins/Deesser"
            control = {
              #"threshold" 0.0125      # default value of the plugin
              "threshold" 0.009375
              #"threshold" 0.00625
            }
          }
        ]
      }
      audio.position = [ FL FR ]
      capture.props = {
        node.name = "effect_input.deesser"
        node.passive = true
      }
      playback.props = {
        node.name = "effect_output.deesser"
        media.class = Audio/Source
      }
    }
  }
]