I am going to assume it means building a sound studio. It is neat that people want to build their own studio. However, one must get many variables correct from the beginning. Miss one variable in the beginning and the whole studio suffers, forever. It is not an easy task even for those of us in the business.
Room size is first criteria. Rooms below a certain cubic foot volume, don’t stand a chance against low frequency energy. The laws of physics tell us that we must have a certain minimum volume in order to avoid the acoustical evils of excess low frequency pressure. This minimum room volume changes for each frequency from 20 Hz. – 50 Hz. We use 6,000 cubic feet as our starting threshold.
Room build materials must be considered in building a studio. Sound takes on the characteristics of the surfaces that it interacts with. Have a room with a lot of glass windows, get “glass sound”. If you have a room full of wood, you get “wood sound”. Wood sound is preferable to glass sound. All you have to do to test this is to sit in your car with the engine off and listen to music. The best rooms have a balance between all the natural building elements: stone, wood, cotton, etc.
Construction of these materials must be done using sound barrier technology. Sound barrier technology keeps the sound energy that is generated from outside the room outside and the sound energy generated inside the room to stay inside the room and not add to the sound level in the environment. It is already too noisy. Vibrational isolation techniques must be employed between all adjoining surfaces.
Building a studio is not easy. One must have a very good understanding of vibrational and electromechanical acoustics and be able to apply that knowledge to solid materials.