A favorable environment has a lot of a lot index, but the stand or fall of acoustic quality is one of good target undoubtedly. We live in an audio world, but voice is too big, make noise, can bring to the person damage. According to international standard, be in flourishing urban district, the noise outdoor, cannot exceed 55 decibel by day, nightly cannot exceed 45 decibel; Live commonly area, cannot exceed 45 decibel by day, nightly cannot exceed 35 decibel. If the person is long contact noise, can produce undesirable reaction and cause “ noise ill ” possibly. Divide outside damaging hearing, noise still can affect the other system of the body, bring symptom of a few physiology, function of nerve of insomnia, neurasthenic, plant is for instance disorder, blood pressure is flabby wait. It is irritating, easy that the person that suffers noise effect normally can arise tired, attention is not easy concentration, unresponsive wait for integrated disease.

Door window is transformed be in again sound insulation

If your home faces a market, had better change the common glass of the window that face a market sound insulation glass. Because sound insulation glass is thicker, ordinary window course cannot is opposite receive, so window frame also wants to transform. If use 5 millimeter to come the transparent glass with 8 thick millimeter, noise can be reduced about after installing sound insulation window 30 decibel above. The sound insulation effect of double deck glass is controlled in 40 ％ , and three-layer glass criterion almost hundred sound insulation. Use the window of model steel door with airtight good performance, 30 ％ reach OK and economic energy resources 50 ％ , can make indoor noise reduces the 1 ／ outdoor 3, maintain control in 30 decibel.

The sound insulation effect of the door basically depends on the filler of the core inside the door. Inside core fill paper base door of mould pressing sound insulation, can achieve the sound insulation result of 29 decibel. Core uses the door of high grade particieboard inside, sound insulation effect can achieve 32 decibel. Real wood door and solid Mu Fu close the door, density is the more high, weight heavy, door plank is thick, sound insulation effect is better. If door plank two sides is engraved,have figure, compared with smooth door plank, can rise certain and sound-absorbing with the action that prevents sound wave to be refracted repeatedly. The door all around the fire prevention door that has sealing strip, also have favorable sound insulation effect. Additional, the door is covered and the installation between the door also is the key that decides sound insulation effect. Expert proposal, the door is covered and the door should be installed by the professional that has experience.

Wall ground adornment prevents to reflex

Too smooth metope and ground, can reflex sound, if use adornment of ” of mild package of wallpaper, “ , or culture stone decorate material, do wall face a few more coarsely, can make sound wave generation is refracted for many times, thereby abate noise. Large family resident, can add install a plasterboard to reduce noise. Small family resident, usable cork is enclothed go up in wall, differ with real wood first be apart from show wall of geometrical graph space, reoccupy cork is enclothed. After transforming wall, noise can reduce 50 much decibel about.
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