SlackBuildsOrg/audio/lv2file

lv2file (apply lv2 plugins to audio files)

lv2file is a simple program which you can use to apply effects to
your audio files without much hassle.  Possible use cases are:
  * When you want to apply an effect without having to open a GUI or
  start a project.
  * When you want to apply effects to a large number of files, or in
  an automated manner.
  * When you need a deterministic environment to debug a plugin.
  * You like everything to be on the command line.