The home listening room should have both good acoustic performance and a beautifully decorated living room with a warm atmosphere. To this end, put forward several renovation suggestions.
1. Door and window treatment
The purpose of processing doors and windows is sound insulation, sound absorption and dust prevention. Many noises enter the room through doors and windows. A good wooden door can reduce the indoor noise level by 10 ~ 20db after it is tightly closed. If the door frame is covered with sealing tape, the total noise level can be reduced by 14 ~ 18db. If the outdoor sound is noisy, it is recommended to install double windows.
Generally, the width of the window sill in the living room is about 12 ~ 15cm. A layer of glass window can be added to the edge of the window sill to prevent dust, noise, and keep warm. Double-glazed windows can reduce outdoor noise by 14 ~ 18db; if covered with sealing tape, it can be reduced by 18 ~ 20dB. If conditions permit, aluminum alloy windows can be installed and made into push-pull type, saving space, easy to use, not easy to deform, good sealing, and its performance is better than steel windows. If the family has installed an air conditioner, the air conditioning duct is the air inlet and outlet, and it is also a noise entrance; if a TV room antenna is installed, the antenna input is also a noise entrance. These pipes and their interfaces should be silenced. Curtains, hanging curtains and tapestries are important sound-absorbing materials, and they are also relatively exquisite and luxurious decorations. The use of velvet and velvet as the material for hanging curtains and curtains can reduce the reflection of sound waves and the resonance of glass windows. The sound absorption coefficient of curtains made of velveteen is 0.31 ~ 0.47, the sound absorption coefficient of curtains made of medium-long fibers is 0.15 ~ 0.27, and the maximum sound absorption coefficient of curtains made of double velvet is 0.69 ~ 0.82.
Second, indoor side treatment
The ground should be treated for sound insulation and sound absorption. It is best to lay a carpet, which is ideal for sound absorption and sound insulation. Generally, the ordinary Hua fiber carpet is about 0.5 ~ 0.71, while the real wool carpet's sound absorption coefficient is about 0.68 ~ 0.82. It is better to erect the wooden floor, if it is limited to the conditions, it can be replaced with wooden strips.
The sound absorption coefficient of wooden floors is about 0.03--0.05. Sometimes people are willing to lay plastic bricks or ceramic tiles, their sound absorption and sound insulation performance is poor, the sound absorption coefficient of plastic floors is 0.02 ~ -0.04, terrazzo scene sound absorption The coefficient is about 0.01 ~ 0.03. The ceiling is also an important way to introduce noise. Those with poor quality and thin floor slabs are easy to transmit the roof, beautiful and soundproof, and have little effect on the height of the room.
Also deal with the four walls. The ordinary wall is a dry plastered brick wall, and its sound absorption coefficient is very small, about 0.02 ~ 0.04. The four walls can be made into a wooden wall; or it can be made into a wooden wall skirt with a height of 0.8 ~ 1m. The wall skirt should be kept away from the wall. A certain distance, not less than 4cm, form a cavity between the board walls, which can increase the low-frequency sound absorption effect. There are many specific methods for wooden wall skirts, and users can also create newer ones by themselves. If you can change the wall into a wave, arc, patch, etc., you can improve the internal acoustics more obviously condition. Usually the wall is painted white or sprayed with gray, latex paint, color spray or other paint, and their sound absorption effect is similar. If conditions permit, the decorative cloth can be attached to the wall, and the wall cloth should be 3 ~ 5cm away from the wall. This kind of wall cloth can strengthen the sound absorption and beautify the living room.
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