To hear the pure high quality audio, is one of the conditions have a no interference noise environment, which requires to reduce noise of various audiovisual room. The reduced audiovisual room of various noise method, in addition to the laying of sound absorption materials, can also take noise, vibration isolation. The sound absorption and insulation combination.
Generally speaking, the listening room noise is the main external noise, interference noise mainly includes the city noise ( traffic and voice ), buildings, and other rooms of the noise produced by noise in air conditioning system. In order to reduce the noise, the listening room should be chosen in a quiet environment, but also reduce the interference among the.
Noise incoming room has two main ways. A is the voice of incident wave by the wall transmission burglary, via air medium to the room noise, and through the crack of the door, windows, air conditioning and air gap pipe hole incoming noise; the other is a vibration and noise, and the room has a solid connection to other structures, vibration induced by impact, and along a solid connection spread to the interior noise.
Sound insulation measures must be targeted, on sound transmission path isolated project is often referred to as " noise " project, the " sound " of isolated project, also often referred to as " isolation " project, commonly referred to as sound insulation.
Usually uses the acoustic material more weight ( density ), the thicker the better, the design for the double doors, double wall effect is quite good, often using a specific sound insulation measures have the following kinds:
The 1 wall: wall should be thick and heavy structure, to improve the ability of airborne sound isolation. If conditional word, can be set to double walls. In the medial wall set sound-absorbing panels, with the walls of a certain distance, is essentially a double-layered wall properties.
2 ceiling and carpet: if the listening room is located in the middle of high-rise building, upstairs, downstairs noise through the ceiling and floor of the incoming sound room. In order to reduce through these channels incoming indoor acoustic vibration, can set the ceiling, with isolated from above the noise coming from the laying of the floor, can be isolated from the ground, so the noise coming from the.
3 door window gap, pipeline: can in the door window seam sealing tape, paste, which is one of the most simple acoustic processing method.
4 windows: set soundproof windows and doors is the key to reduce the noise. The door of the transmission loss depends on its weight, hardness and density. General door sound insulation quantity is 18dB, increase the weight of the door, thickness, can improve the level of sound insulation. If the set of double doors, the middle filled with sound-absorbing material, can significantly improve the sound absorption effect.
If conditions permit, home theater sound room window can be arranged into two layers, or three layers glass window glass, the thicker the better, the glass and a frame with special-shaped rubber strips are connected, so that the sealing and flexible balance, quality sound insulation of sound insulation of windows performance may reach 24cm brick wall effect.
