When you do interior decoration, you can choose a variety of types of cut off, which one of your favorite? Brick Cement Needless to say, rugged sound insulation is good, but the construction period is a little longer, you want to re-transformation is a big project. The calcium silicate board, gypsum board, wood also have their own advantages and disadvantages, fire, moisture, noise, texture,Soundproofing the price had to think carefully. But the above said several kinds of materials have to go to the professional designers and technicians to design and construction, if you want to play yourself really a little difficult.
For a building space, its enclosed structure by the external sound field or directly by the impact of objects and vibration, it will radiate sound energy to the building space, so the space outside the sound through the enclosure structure to the building space, which Called "sound". The incoming sound energy is always more or less less than the external sound or impact of energy, so that the structure of the isolated part of the role of its sound energy,Soundproofing which is called "sound." Sound and sound insulation is just a phenomenon from two different angles derived from a pair of opposite concept. If the sound of the impact of radiation to the building space in the sound can be reduced, known as the "solid sound or shock isolation." The sound energy of the external space sound field,Soundproofing known as "air sound isolation" This is different from the concept of vibration isolation, the former is the arrival of the air to the recipient, the latter is the recipient of the solid vibration. But to take vibration measures to reduce the impact of vibration or impact on the surrounding structure (such as the floor) of the impact, you can reduce the impact itself.
Sound insulation testing of equipment is usually carried out in a good sound insulation experiment. Sound insulation laboratory consists of sound source room, receiving room, control room. Sound insulation laboratory test room consists of two adjacent reverberation room, one for the sound source room,Soundproofing the other for the receiving room, between the two rooms set the specimen hole, to install the specimen. According to the China Institute of Building Science Environmental Monitoring and Optimization Research Center to build sound insulation test bench experience and the relevant requirements of the standard sound insulation standard is usually set the specimen hole size 4000 × 2500mm, an area of 10 square meters, measuring doors, windows, glass and other areas less than 10 square meters of the specimen, according to the above standards, in the specimen hole to meet the size of the specimen to meet the installation of the hole. In order to control the background noise of the test room,Soundproofing to suppress the lateral sound, accurate measurement of building materials and components of the air sound insulation performance, sound insulation laboratory "room room" structure. The sound source chamber and the receiving room are completely disengaged in the structure; the sound source chamber, the receiving room and the original foundation are provided with the vibration isolation material; the laboratory adds the external wall, the sound source chamber, the receiving room wall,Soundproofing the ground and Top selection of high sound insulation properties of the material; test room doors are used double barrier doors, made "sound brake" to further improve the door's sound insulation.
Any wall there is an inherent resonance frequency, when the frequency of the sound wave and wall resonant frequency consistent, the overall wall resonance, the frequency of the sound insulation will be greatly reduced. In general, the thicker the wall, the lower the resonant frequency, when the resonant frequency is lower than the minimum reference frequency of 100Hz, because the human ear auditory characteristics of the low frequency is not sensitive to the impact of the sound insulation Rw greatly reduced.