Myself have been working a lot lately with SunVox and recording other applications into it but have not taken the time yet to look deeper into the new functions as I am scared of confusing and sidetracking myself! But must say that the Sound2Ctl function looks tasty indeed.
If I understand it is like a form of sidechaining but sidechaining any parameter on any module... That is what have made me keep my distance so far, as the possibilities of just that is more than I can take right now.
As alway Mr Nightradio is giving us tools that makes us think outside of the box and that after some experimentation will lead to new vistas.