Monday, December 20, 2010

【 Weak current College 】 rooms sound-acoustical description--Power By 【 China power house network 】



Package room acoustics acoustical mainly included two large items: ① ② rooms with soundproofed rooms in good sound reflection of control rooms soundproofed and segmentation: ① rooms and room sound insulation between rooms and external aisle ② and public space of sound insulation ③ jounce upstairs, downstairs room bass shipping, how to reduce/reduce/eliminate.

General private room and package room partition to light brick outsources cement Foundation insulation, isolation 70% 60% of the treble, bass, but be sure to play wall has been playing to the ceiling-roof, ceiling above pipeline can punch through wall, in the wall of the base 20 cm it is best to use the density of large red brick. Mainly to avoid future waiter do, clean ground water absorption by masonry material caused wall wallpaper, wall hanging, by extension of damp, the lowest since bricks with surface lamination, cement material required to avoid dense some future of stagnant water.
Room acoustic reflex best materials for gypsum board, the Board has, in the middle of wood corner bar fills with versamat, gypsum board material soft and moderate, sound reflection after the sound softer, moderate, and low-frequency vibration absorption via versamat, lower-frequency transmission.
In General, is the first brick wall since then surface batch of cement, and wood corner material on versamat on gypsum board, finally as wall hanging wallpaper or spray.
In General, pack the room wall surface processing, in the main speakers in the rear wall must be rigid walls, brick, cement, glass can, to avoid the use of soft package, speaker out of wave will be more clear. Side walls are handled as best for gypsum board, but as for design decoration elegant, cement surface directly wallpaper or glass processing will enhance the acoustic reflex, making sound slightly hard for some, it is recommended as the best use of glass and other materials cross processing, for example,using a meter glass, a metre wall hanging.
Package atrial tachycardias built-in sound of the most important of the wall in the back of the lounge chair, regardless of the choice of any of the materials, but the basic principle is not large area is flat, if Taiwan KTV is like using the till wave decorative plates, even someone with a soft pack, there are also people who do woodworking decoration is equipped with a hole, a bump convex anyway au from the primary speaker came the sound, the wall does not point to the best random reflection rate, effectively reducing microphone screech, microphone volume can be the appropriate reference number aloud.
The choice of rooms and building materials has its basic features, the more hard construction materials, some of the acoustic reflex will be large, such as tiles and marble floors sound than carpets come off (treble brighter), walls of glass used by more than wallpaper wood, plaster board sound to light, but the side wall and back wall as sound reflection too much, the howl of the microphone may also be improved.
General Liangfanshi KTV, we recommend that the ceiling height should not exceed 2.8 m, best sound field environment 2.7 m, particularly small and medium-sized Chamber so that you can control the entire room sound volume of the air, to achieve the best sound field effect.
But some Commerce KTV, because decorated Deluxe you highlight, often higher than the ceilings are 3 m, in this case, room volume, sound space, equipment loudness relative increase of requirements, device allocation budget will than wholesale KTV big lots, so when choosing equipment, regardless of the price unit if the foot is not only in the device, the total price low, often some companies to avoid price is too high, the devices with lacking to be appended to the future.
The rooms with ceiling treatment, I proposed two-stage smallpox is good, but cost is relatively high, in fact, the average wholesale KTV days huadu is totally a plane, there are also some shop ceiling hole loading effect light or no letter of smallpox, smallpox spray only black, good sound requirements, we do not recommend completely on the ceiling, as it will increase the volume of the sound field, the biggest bad is when guests loud singing sound reflection confusion, causing overall sound of turbidity, reasons to truthfully in decoration, to opening its opening area of not more than 1/3 of the total area of smallpox.
About room and exterior walkways between noise, mainly by the door and door frame, some long experience, the first door best use solid splint, gate middle hole shape hole not too large, the best glass hole as double glazing, another door seams to widen, it is best to have a 2 cm of width, and at the junction to affix a soft rubber sheet, or rubber Strip, to achieve when the door closed, the doors and door frames without gaps, artistry and ground to gaps smaller, and the other door closed when the clip is a good idea to have two (previous and next), which helps when behind closed doors closed to some of the more compact, and the other as to install automatic door closer is better.
Some KTV shop location, upstairs for a dwelling or business hotel, in this case sound problems arise, how to block the low-frequency transmission, first of all the various methods of sound as steel wire hanging fixtures, rather than using a general sound box hanger, if there is a subwoofer must be placed in a separate subwoofer stone, slate spring, spring installed below under 1 cm thick on rubber sheet, not the subwoofer directly placed in cement or tiles, and a subwoofer is not close to a wall, it is best to leave the 5 ~ 10 cm.

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