After a prompt by @BlackMagic, I realised that the code for automatically searching the AudioSource of the atom was weird (hey, that was my first plugin ever... so I am excused) and missed the HeadAudio of a person when attached to one. Fixed now. The demo scene has a new button ("V") that makes her say something and the eyes flash based on the spoken words driven by the BeatIt plugin on the "Woman" atom.