I've just taken down a dilapidated saggy lath and plaster ceiling in the sitting room of my victorian terrace. For all its faults it was pretty good at soundproofing between the sitting room and the bedroom above it. I'm getting worried that putting up a single layer of plasterboard and skimming it will give virually no soundproofing.
So, I've been looking at this:
But now I'm thinking that maybe I'm getting this out of proportion. Does this look over the top for soundproofing within a house? Any simpler ideas?