Home Cinema Installations and Sound Transmission Through Doors
The reference degree of a soundtrack is 105db and 115db for the LFE channel. Most people would find these levels quite high, but simple enough to hear, in a correctly designed home cinema room.
An issue occurs though, whenever we face the challenge of keeping the noise in the cinema room. In a residential installation, quite often we find bedrooms and other living areas to be right close to the house cinema room. Special room construction techniques allow us to create a sufficient noise barrier, in order to reduce any sound transmission to the adjacent rooms.
However, doors will always be the weakest point, in this attempt. home cinema installation The mass, damping and stiffness of the house cinema door will determine its resistance to the passage of any sound waves. A door’s ability to cut back noise is given by its Sound transmission Class. This implies, the bigger up the Class the better the efficiency.
One more problem arises though; Sound waves can travel through any opening with almost no loss. And to top it off, a little hole in a barrier would transmit almost as much sound as a much larger hole. This acoustic property of sound is actually a serious issue in a home cinema installation, where good quality construction is required. That is where acoustical gaskets come into play. A home cinema door, in order to be effective, the seals around the pinnacle, jamb and sill should be complete and air-tight.