Secondly, it is equally important to deal with the sound insulation between the box and the outside world to ensure that customers will not be disturbed by outdoor noise when singing, and will not affect the surrounding residents and shops. However, due to the pursuit of beauty in modern architecture, KTV boxes are mostly designed with glass exterior walls. Although a certain thickness of glass will have a certain effect on sound insulation, the best treatment method is to add a brick wall inside the glass wall or a wall filled with a small amount of sound-absorbing asbestos. This double-layer sound insulation treatment can achieve the best sound insulation effect. In addition, doors and windows are also an important part of sound insulation treatment, so we can consider increasing the thickness and quality of materials as much as possible to improve the sound insulation effect.
For the sound insulation of ktv rooms, it has always been an important problem that is very difficult to solve. Because the object is an invisible sound, it must be quite difficult. Some skills are needed in the actual treatment process. As far as sound insulation measures are concerned, there are great differences due to the different environment and playback volume. In order to improve the sound insulation performance of light wall, the following measures can be taken:
1 enhances the sound insulation characteristics of the wall.
Generally speaking, the load-bearing wall of residential buildings adopts steel plate concrete or solid brick structure, which has good sound insulation effect. Most of the problems are on the light hollow bricks or gray cardboard used in the partition wall. There is no doubt that this is the place with the most serious sound leakage except doors and windows. If no measures are taken, the air vibration in the middle of the hollow brick will cause the wall vibration, which is very unfavorable to the sound quality. There are two concrete solutions. First, tear down the original wall and rebuild a soundproof wall; The second is to keep the original wall and add a soundproof wall.
Personally, I agree with the first method: remove the original wallboard, install gray cardboard on both sides and fill with glass fiber. This plan will have a good effect. The second method is to keep the original partition wall and add several new columns to form a sound insulation wall, which is filled with glass fiber. This scheme adds a new wall, and its sound insulation characteristics are better than the previous scheme. But it will make the room space much less, which is generally not suitable for private rooms.
If you are very concerned about the space of the room, it is also a way to choose the sound insulation board (lead board), sound insulation felt and sound insulation cotton sold in the market. Only the same sound insulation effect, the cost of this scheme is higher.
2. When the thickness of air interlayer is increased by more than 5mm everywhere, the sound insulation capacity of most frequency bands can be increased by 8- 10 dB. If both sides are 75mm thick aerated concrete slabs and 75mm light walls are in the air, the average sound volume can reach 50dB. Filling the air interlayer with new sound-absorbing materials for stage can improve the sound insulation effect by 2-8 dB.
3. The joint density of light wall has a great influence on sound insulation. Double-deck boards should be staggered and overlapped, and the veneer should be plastered or jointing. For example, for each veneer, the difference between jointing and jointing can be12-17db. When the embedded electrical switch box and socket box are set on both sides of the light wall, the setting positions of the two sides should be staggered and the surrounding gaps should be filled.
Finally, pay attention to the level of sound insulation, and know what kind of standard you want to achieve. Therefore, it is most important to take corresponding measures, spend the least money, and get the sound insulation effect equivalent to our economic ability and appreciation level.