This is a Blender python script which uses DanielSWolf's rhubarb-lip-sync
to generate keyframed custom properties from a .wav file. It requires
that you download Rhubarb separately.
To use, open rhubarb-2-blender-custom-properties.py in
Blender's scripting workspace, and read the documentation at the top of the
script, make the necessary modification, and run the script.