Principle of soundproof room

A soundproof room is a building that can attenuate or prevent the propagation of sound. There are two main principles. One is to use the propagation characteristics of sound in the air to absorb and consume the energy of sound by installing sound-absorbing materials indoors; the other is to use the propagation characteristics of sound in rigid structures to attenuate the propagation of sound by installing soundproof walls indoors.

Among them, sound-absorbing materials can be porous and breathable, such as glass fiber, mineral wool, plant fiber, etc. They can absorb and reflect sound, thereby reducing indoor noise. Soundproof walls can be solid and rigid, such as concrete, brick walls, etc. They can block the propagation of sound, thereby reducing indoor noise.

In the design of the soundproof room, the following points should be noted:

1. Wall material: The wall material of the soundproof room should have high sound insulation performance, such as concrete, brick wall, gypsum board, etc.

2. Window materials: Window materials should have low sound transmission performance, such as double-glazed windows, sound-absorbing glass, etc.

3. Door material: The door material should have low sound transmission performance, such as sound-absorbing doors, soundproof doors, etc.

4. Air layer: In the design of the soundproof room, the air layer can reduce the sound reflection.

5. Sound-absorbing materials: Sound-absorbing materials can absorb and consume the energy of sound, thereby reducing indoor noise .