The sound will be good only if the acoustic material is used correctly.

In domestic restaurants, it is because we Chinese are so lively when we talk at the top of our voices? In foreign restaurants, they talk softly to each other, quiet and elegant, and feel that the style is high and the quality is good?

Acoustic environment experts tell you, "It may be that the acoustic materials are useless. At present, the domestic restaurant decoration does not consider acoustic treatment, resulting in a noisy environment, the sound interferes with each other, and the speaking volume is involuntarily louder. Using good acoustic materials makes our The restaurant environment is equally elegant and stylish.”

Three Common Acoustic Materials

Bedroom microporous cotton sound-absorbing panel, elevator noise-absorbing panel, ceramic aluminum material sound absorption coefficient
Acoustic materials (mainly referring to sound-absorbing materials) involve all aspects of life. In the United States, only 1% of acoustic materials are used in the field of music recording, and more are used in the construction and decoration of residences, hotels, restaurants, office buildings, and gymnasiums. There are three common types of acoustic materials in China, but each has serious problems.

The first is a soft sponge bag. This material has a high risk factor. The bloodiest lesson is the fire in a bar in Santa Maria, Brazil. The fire killed more than 200 people and injured hundreds more. The wounded filled all the local hospitals. It can be seen from the live video and pictures that the fire was very large, and the flames rose several floors high. The fire lasted for several hours before it was extinguished. According to reports, this is the deadliest fire in the world in the past many years. According to the investigation, the home band used fireworks to perform in the nightclub in order to create an atmosphere that night. It may have been a spark that accidentally hit the soundproofing foam wall and spread quickly along the ceiling. The chief of the police department stated that the foam material on the ceiling of the nightclub is flammable and can only be used to eliminate echoes and cannot be used as sound insulation materials. "This thing is the soft bag we often say now. It is filled with sponge, so when a fire occurs, it cannot be flame-retardant, but combustion-supporting." In addition to being unsafe, its sound-absorbing effect is also unstable, because the production of sponge requires constant stirring of raw materials, heated and then pressed into shape. Throughout the process, there is no uniform standard for temperature and strength, so the density of each batch of sponges is different, and the sound absorption effect is also different.

The second is polyester fiber sound-absorbing panels. This material can be made in various colors, it is very beautiful and easy to install, but its advantages are limited to this, and it has no effect on the sound at all.

The third type is wooden sound-absorbing panels. Many companies went abroad to inspect and saw that the wooden sound-absorbing materials used by others were beautiful and effective, so they came back to learn, and they were also clad with wood when decorating. In fact, the wooden sound-absorbing material on the surface is at the back, and what really affects the sound is the sound-absorbing cavity behind. Many domestic imitation installations often only have wood on the surface, without a cavity behind, and of course there is no desired sound absorption effect.


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