@CoolTOYZPH
Thanks! Ginawa ko na lang wood ang framing para sure na hindi magvibrate. Yes, use of bass traps/diffusers/absorbers will definitely be included in the room. I'm trying to isolate the problem on the ceiling alone, para sa ceiling pa lang, well constructed na against vibrations (or ma-minimize man lang, plus with the help of bass traps etc).
@CeeV
Yung din plan ko dati e, may Rockwool sa loob ng ceiling, but I scrapped that out since masyadong maliit ang opening between gypsum ang cement ceiling. Besides, buhos (cement) kasi yung mismong upper ceiling ko e kaya pwede na siguro hehe.
As far as I know, both, but for me it is more of sound insulation going out of the room, because lower frequencies tend to escape more out of a room.
Pagkaalam ko, meron warehouse na nagbebenta ng Rockwool malapit sa NAIA1/2 dati (Paranaque), I forgot. Search the forums here na lang. Nakabili ako dati dun, Roxul brand yata, pero mas pricey.
@Tony
Thanks, I will try to learn the link if ever if have time (if ever huhuhu)