The reference level about a soundtrack is 105db and 115db for the LFE channel. Most people would find these levels quite high, but not hard to listen to, in a correctly designed home cinema room.
A problem occurs though, when we face the challenge of keeping regular alarm inside the cinema room. In household installation, quite often we find bedrooms and other living areas to be right next on the home cinema home. Special room construction techniques allow us develop a sufficient noise barrier, in order to reduce any sound transmission towards the adjacent rooms.
However, doors have always been the weakest point, in such an attempt. The mass, damping and stiffness of the home cinema door determines its resistance for the passage of any sound waves. A door’s ability to relieve noise is written by its Sound transmission Class. This means, the higher up the Class the better the efficiency.
One more problem arises though; Sound waves can cross any opening with very little pain. And to top it off, a tiny hole in a barrier would transmit almost as much sound like a much larger leak. This acoustic property of sound could be a problem in a home cinema installation, where high quality construction is required. In the area where acoustical gaskets come into play. A home cinema door, in an effort to be effective, the seals around the head, jamb and sill must be complete and air-tight.
In other words, the grade of of the acoustical gasket in a house cinema installation, would see how close real sound performance of the door, will arrive to the published list of specifications. A hi-end Home Cinema Installation Hertfordshire cinema design should take everything into consideration, to ensure a hi-end acoustical result.