The reference level about a soundtrack is 105db and 115db for the LFE channel. Most people would find these levels quite high, but not challenging to listen to, in a correctly designed home cinema room.
A problem occurs though, when we face the challenge of keeping instantly inside the cinema room. In non commercial installation, quite often we find bedrooms and other living areas to be right next on the Home Cinemas St Albans cinema residence. Special room construction techniques allow us to build a sufficient noise barrier, in order to reduce any sound transmission towards adjacent rooms.
However, doors generally been the weakest point, in type of attempt. The mass, damping and stiffness of the home cinema door determines its resistance towards the passage of any sound waves. A door’s ability to relieve noise is you can find at its Sound transmission Class. This means, the higher in the Class the better the efficiency.
One more problem arises though; Sound waves can travel through any opening with very little loss. And to top it off, a tiny hole in a barrier would transmit almost as much sound as being a much larger hole. This acoustic property of sound could be an oversized problem in a residential cinema installation, where high quality construction is required. In the area where acoustical gaskets come into play. A home cinema door, to be able to be effective, the seals around the head, jamb and sill must be complete and air-tight.
In other words, the standard of of the acoustical gasket in a house cinema installation, would figure out how close the actual sound performance of the door, arrives to the published specification. A hi-end home cinema design should take all the info into consideration, to ensure a hi-end acoustical result.