Yeah, I'm sure is a silly question but here we go:

What the hell mean the toggle button "ADV" on settings?

Technically is a sound option, but I've no idea of what the hell does.

So any help is welcome XD

Its for the scenes that have female voices. Turning that off or on determines if you can hear their voice. You can adjust it there or in the scene with the little speaker button on top right of dialogue box.

Well, then don't work at all XD Even with the toggle on, in every scene I must active the sound with the speaker, I think I read in someplace that this feature is bugged, not sure where.

Anyways, thanks for the info I supposed ADV means "active dialogue voices" XD