What do you think the sound barrier is for?

Sound insulation wall (sound barrier) is mainly used for sound insulation and noise reduction in traffic and municipal facilities such as expressways, elevated composite roads and urban light rail subways. , control the influence of traffic noise on nearby urban areas, and can also be used for sound insulation and noise reduction of noise sources such as factories. It can be divided into reflective sound barrier with pure sound insulation and composite sound barrier with sound absorption and sound insulation. The latter is made of more effective sound insulation materials. Most sound barriers adopt sound-absorbing and sound-insulating products, which are characterized by controlling the generation and propagation characteristics of road noise in a targeted manner. For example, the friction sound between the car and the road or the locomotive and the track is at the lower part of the road, and the sound is diffracted through the upper part of the screen, so the structure of up and down sound absorption and sound insulation in the middle is adopted in the design, which can effectively reduce the noise diffraction; Transparent reflective sound insulation board is used in the middle of the sound barrier, which can effectively block the propagation path of sound waves; At the same time, it also provides a broad vision environment for drivers and residents. In the field of architectural acoustics, reverberation time and room acoustics environment are controlled by acoustic management to meet the requirements of professional venues. According to the application environment, noise barriers can be divided into traffic noise barriers, equipment noise elimination noise barriers and industrial boundary noise barriers. According to the classification of materials, it can be divided into the following categories: metal noise barriers (metal shutters, metal mesh holes), concrete noise barriers (light concrete, high-strength concrete), PC noise barriers, glass fiber reinforced plastic noise barriers, etc. According to different uses, it can be divided into several categories: railway noise barrier, highway noise barrier, urban landscape noise barrier, noise reduction noise barrier in residential areas and so on. Sound insulation wall also refers to the movable wallboard used in recording studio or recording studio, usually with sound absorption material on one side and sound insulation and reflection material on the other. Its function is to reduce the crosstalk of each sound source in the recording studio, or to adjust the sound quality of the sound source by using the different sound absorption characteristics on both sides of the wallboard.