Second internal ceiling suggestion

I already have an exterior concrete ceiling on my recording studio :( now I am in doubt about what is a best solution for second internal ceiling: concrete 10" thick or 3 gypson layers?

Hi "Peron", and welcome. There is an announcement at the top of the forum about what to do to assure getting as many responses as possible. The announcement leads to this post (click here). Actually, several people, who are experts on this forum, will most likely not reply if you don't do what is written in that post. So please read over that, and provide the missing information. You didn't give us enough to be able to help you! :) - Stuart -