Everyone knows that the first feeling when they go in KTV is that they can hear the singing sounds of various ktv rooms, which is very noisy. But some KTV can do sound absorption and sound insulation very well, so KTV sound absorption material is indispensable. So what are the KTV sound-absorbing materials? The following editor will introduce to you.
What is a sound-absorbing material (sound-absorbing material)
Any material can absorb sound, but the degree of absorption is very different. Generally, materials with an average sound absorption coefficient greater than 0.2 for the above six frequencies are classified as sound absorbing materials. Sound absorbing materials Most sound absorbing materials are loose and porous materials, such as slag wool, blankets, etc. The sound absorption mechanism is that sound waves penetrate into the pores of the material, and the pores are mostly open holes that penetrate each other, and are subject to friction and viscous resistance of air molecules. And make the fine fibers vibrate mechanically, so that the sound energy is converted into heat energy. The absorption coefficient of this type of porous sound-absorbing material generally increases gradually from low frequency to high frequency, so it has a better effect of absorbing high-frequency and middle-frequency sounds.
Types of sound-absorbing materials
1. Sound-absorbing material hemp. Cheap, poor fire and moisture resistance.
2. Petroleum fiber cotton. In case of fire, it melts, does not absorb water, and does not endure dirt. It is not easy to absorb high frequency noise, and the sound absorption effect is poor.
3. Sponge. Which are mostly used in recording studios. It is easy to absorb dust and is not flame retardant.
4. Aluminum silicate cotton. Fire-resistant, non-absorbent and dirt-resistant. It is not easy to absorb high-frequency noise and is not environmentally friendly.
5. Rubber sheet. The shock absorption ability is weaker than that of asphalt board, and the sound absorption ability is stronger. Self-important and difficult construction.
6. Industrial rubber-plastic board. It is mostly used in the thermal insulation equipment or air-conditioning industry in the construction industry. Sound insulation and shock absorption are relatively strong and cheap. Insufficient: No sound-absorbing material has an odor.
7. Modified sponge. The problem of water absorption has been solved, and the ability of sound insulation and so on has weakened.
8. Glass fiber cotton. Good sound insulation, water absorption, heat insulation, this sound absorbing material is not spontaneous combustion, corrosion and moisture proof. It is not environmentally friendly, and industry has gradually phased out.
9. Fiber blanket, industrial felt. It is only applicable to the bottom plate and ceiling of the car, and it is cheap. No waterproof, fireproof, anticorrosive.
10. Foamed silicone board. Not easy to burn, waterproof and environmentally friendly. The sound insulation effect and shock absorption effect are good, and the service life is long. The sound absorption performance is average. Cost-effective.
What are the KTV sound-absorbing materials
First of all, everyone knows that there are two noise sources of KTV. One is the loud singing of customers in the KTV private room. This noise-absorbing sound insulation material can be removed, so I won't go into details here. Another noise is the low-frequency noise emitted by audio-visual equipment such as subwoofers, which is the most difficult to remove. Because this kind of noise penetration is extremely strong. Ordinary KTV sound-absorbing panels cannot resist the propagation of this noise. Therefore, such low-frequency noise in KTV naturally becomes the number one noise that KTV cannot handle. Therefore, a good KTV sound-absorbing plate must be able to shorten the reverberation time.
1. Wooden sound-absorbing board
There are two types of wooden sound-absorbing board: grooved wood sound-absorbing board and hole wood sound-absorbing board. Slot wood sound-absorbing board is a kind of slot resonance sound-absorbing material that is slotted on the front of MDF and perforated on the back; The structure is a sound-absorbing material with round holes on the front and back of the board. Two types of acoustic panels are commonly used for wall and ceiling decoration.
2. Wooden hanging board
Wooden hanging board, which is called wooden finished decorative hanging board, is a wooden finished decorative member that involves wooden materials, carpentry, and paint during the decoration process. It is widely used in the wall decoration and decoration of villas, multi-storey or high-rise apartment buildings, office buildings and entertainment places. It has the function of sound insulation and heat insulation. Special materials and special craft hanging boards also have a certain fire protection effect.
3. Polyester fiber acoustic panel
100% polyester fiber is hot pressed by high technology and made in the shape of cocoon cotton to achieve density diversity and ensure ventilation. It has become an excellent product in sound absorption and heat insulation materials. The highest sound absorption coefficient reaches more than 0.9 in the noise range of 125 ~ 4000HZ. According to different needs, shorten the adjustment reverberation time, remove the sound impurities, improve the sound effect, and improve the clarity of the language. The product has the characteristics of decoration, heat preservation, flame retardant, environmental protection, light body, easy processing, stability, impact resistance, and easy maintenance. Become the first choice of decorative sound-absorbing materials for interior decoration.
4. Fabric leather sound-absorbing soft bag
The sound-absorbing soft bag can be called cloth sound-absorbing soft bag, leather sound-absorbing soft bag, fire-proof sound-absorbing soft bag, etc. It is a new type of building material used in modern decoration. It is used in projects of sound absorption and sound insulation of buildings. In engineering, to replace the traditional sound insulation board materials. Sound-absorbing soft bags are currently widely used in hotels, restaurants, offices, conference rooms, movie theaters, gymnasiums, gyms and other places. Its own non-toxic, tasteless and environmentally friendly features are deeply loved by the majority of developers and are very practical. Sound-absorbing material.
5. Calcium silicate perforated sound absorption board
Calcium silicate board as a new type of environmentally friendly building materials, in addition to the functions of traditional gypsum board and mineral wool board, it also has the advantages of superior fire performance, moisture resistance, and long service life. It is widely used in ventilation pipes of industrial and commercial engineering buildings, home decoration, Lining for furniture, lining for billboards, partitions for ships, sheds for warehouses, network floors, floor slabs with additional space, and wall panels for interior projects such as tunnels.
Editor's summary: Relevant information about what is sound absorbing material and ktv sound absorbing material is introduced here for everyone. I hope this article will be helpful to everyone. If you still do n’t understand something, you can leave a comment below, we will answer it as soon as possible.
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