lv2file

About lv2file

From Debian's package description

lv2file is a simple program which you can use to apply LV2 effects to your audio files without much hassle.

Possible use cases of lv2file are:

• Apply an effect without having to open a GUI or start a project.
• Apply effects to a large number of files, or in an automated manner.
• You need a deterministic environment to debug a plugin you are developing.
• Command-line only audio processing.

lv2file does not come with any built-in effects, so you must install other packages containing LV2 plugins to use with lv2file.

From Debian's description of the lv2file package, under that package's license.