Noise is ubiquitous in our lives. With the improvement of our living standards, our requirements for sound absorption and noise reduction are getting higher and higher. Needless to say, some conference halls, theaters, and karaoke rooms that require professional sound-absorbing effects will also use sound-absorbing panels in many occasions such as ordinary homes, offices, and shopping malls. So what is the sound-absorbing effect of sound-absorbing panels? Some people will inevitably have doubts about the sound-absorbing effect of sound-absorbing panels. Let’s take a look at the sound-absorbing effect of sound-absorbing panels.
To understand the sound-absorbing effect of sound-absorbing panels, it is necessary to know the sound-absorbing principle of sound-absorbing panels. The principle of sound absorption is to leave a channel in the sound-absorbing material for the sound to enter. The sound-absorbing material can be mainly divided into microporous type and fiber type. There is not much essential difference between them. The microporous type is composed of countless continuous tiny holes The channel fiber type is composed of countless fibers crossing and mixing together to form countless tiny gaps. Because the channel is too long and messy, once the sound goes in, it can’t come out. It drills and rams left and right in it. In the process, the energy of the sound is gradually consumed, which plays a role in sound absorption. So in a broad sense, all things that have messy, very long microchannels can be used as sound absorption, such as cotton, various fibers, sponges, carpets, etc. There is also a theoretically good sound-absorbing material, which is a surface similar to a needle, which seems to be a "plane" formed by bundling many needles into a bundle. After the sound reaches the "needle"-shaped surface, it is continuously reflected inward, but never reflected outward. This kind of surface can absorb the sound like a black hole.
