Sound proof trouble...help me!
I've had my studio built by a guy who has built some studio here in Bangkok.
When he started I did not know anything about materials...neither I know now.
The result of soundproofing was very bad and limited...I can hear people talking (I mean chatting) from the outside. Of course this is a door problem but it makes me think of how the whole studio has been built. Sound prrofing wall to wall is also very, very poor, and I can hear the melody line also when using a low, low volume...almost impressive.
I give you some details. It's a studio built in a condominium on the first living floor.
We thought it was not the case to build a floting floor.
So, he built the room in the room only for walls and ceiling and he did it like this. Put a wood wall parallel to the wall and left around 5 -6 cm of air, then he built two more wood wall and filled the space between the second and third only with some (very inconsistent) mineral fibre. He did not use any other material nor Gypsum board (wich I've been told later to be very important).
What do you guys think? Was he completely wrong? Should I put Gypsum board or other specific materials? Do I need floating floor?