I made an Instrument Rack I call “Video Simpler +”. It uses an unheard audio test-tone to trigger a M4L Envelope Follower which is mapped to some additional controls.
Note Velocity > Image Size
Attack and Release times for Image Size Ease In and Ease Out
It also has Macros mapped to Rotation / Position X / Position Y.
A short demo video is here:
The video also contains a piano instrument, so you can hear the effects of note velocity.
You can download an .alp here: Video Simpler +
I hope you might find it useful. Any feedback and suggestions for improvement gratefully received!