What factor does NOT influence the transmission of sound between rooms?

The size of the room generally does not influence the transmission of sound between rooms as significantly as the structure of the separating walls and the materials involved. Factors such as the thickness of the wall, the area of the wall, and the materials used all play crucial roles in how sound travels and is attenuated.

The thickness of the wall can directly impact sound insulation; thicker walls can better absorb and block sound frequencies, preventing them from traveling from one room to the next. The area of the wall relates to how much surface area is available for sound to be transmitted through; larger wall areas could potentially allow more sound transmission, depending on other factors like the type of wall material and its properties. Similarly, the material of the wall significantly affects sound transmission, as different materials have varying densities and acoustic properties that can either enhance or reduce sound transfer.

In contrast, while the size of a room can impact acoustic properties, it is less relevant when considering sound transmission specifically between two rooms divided by a wall. The primary sound isolation concerns arise more from the properties of the wall itself rather than the dimensions of the adjacent spaces.