一：作為窗戶的（de）隔音對策（cè），通常是采用雙層窗的結構。可以把現有的窗戶保留，再追加一扇（shàn）窗戶;或者是去掉已有的（de）窗戶，重新安裝一扇按新標準設計的玻（bō）璃都一樣厚，它們的諧振頻率就是相同的。這樣會使該頻率（lǜ）附近的（de）聲音很突出。一般情況下（xià），兩層窗戶的間隔應有20cm-30cm。要達到和混凝土牆同（tóng）樣的-50dB的隔音效果，比（bǐ）較好兩層（céng）玻璃之間的間（jiān）隔（gé）在30cm以上。如能在此間隔中再采取一些（xiē）吸音措施，那就（jiù）更好了。正確地施工，房間能保證-50dB的隔音特性。

　　二：第二個薄弱環節就是門。隔音效果比較差的要數一般集體公寓中和簡單家庭裝（zhuāng）修中裝（zhuāng）設的門（mén），粗造地（dì）用膠合板釘的（de）門和門框之間有不小的間隙，其隔音特性比較多不過-15dB。一般住宅門的隔音特性可達-25dB~-35dB。性能（néng）更高的，監聽室用的那種鐵（tiě）門（mén）很少（shǎo）在民宅中見到。現在日益增多（duō）的雙層（céng）防盜門有不錯的隔音特性。

　　三：接下（xià）來的工作（zuò）是對各（gè）種牆壁隔音特性的增強（qiáng）。一（yī）般民宅的承重牆用鋼盤混凝土或實心磚的結構，有較好的隔音效果。問題多出在隔（gé）牆（qiáng）采（cǎi）用的輕型空心磚或灰膠紙板，隔音特性隻有-25dB~-30dB。多數家庭影院的房間都有一至二堵牆麵是這樣的結構。毫無疑問，除了窗戶和門之外，這是（shì）產（chǎn）生聲音匯漏比較為嚴重地方。如不采取措施，空心磚中間的（de）空氣振動會引起（qǐ）牆（qiáng）壁共振，這種情形對音質十分不利。具體（tǐ）解決的辦法有兩種。一是拆掉原有牆壁，重新打造一堵隔（gé）音牆;二（èr）是保留原有的牆壁，增加一堵隔音牆。

　　四：要（yào）作到真正的隔音，自然是對房間的（de）六個麵（miàn）實施隔音措施。如果隻（zhī）對相（xiàng）鄰房間的牆壁(隔牆)增加一定的隔音性能，那麽，地麵和天花板對聲音的影響（xiǎng）又會突出來。為了防止這種情況的出現，完全切底的隔音肯定是對房（fáng）間的六個麵都采取相應的措施。要更好（hǎo）地提高房間的隔音特性，就是在房間中再造一個房間，即所謂“室中室”的結構。

A: as a window of sound insulation countermeasures, is usually the use of double window structure. You can keep the existing window and add another window; Or you could take out the existing window and install a new one that's the same thickness and resonates at the same frequency. This will make sounds near that frequency stand out. Under normal circumstances, the interval between two floors of Windows should be 20cm-30cm. To achieve the same -50dB sound insulation effect as concrete walls, it is best to have more than 30cm between two layers of glass. If can take a few sound-absorbing measure again between here, that is better. Properly constructed, the room has a -50dB sound insulation characteristic.

Two: The second weak link is the door. Sound insulation effect is worst want the door that number general collective apartment and simple family are decorated in the outfit that set, there is not small gap between the door that rough ground uses plywood nail and doorcase, its sound insulation characteristic does not cross most -15dB. The sound insulation characteristics of general residential doors can reach -25dB~ -35DB. Higher performance, the kind of iron doors used in surveillance rooms are rarely seen in private homes. The double-deck door that increases day by day now guards against theft has pretty good sound insulation characteristic.

Three: the next work is to enhance the sound insulation characteristics of various walls. The load-bearing wall of general residential buildings is made of steel plate concrete or solid brick, which has better sound insulation effect. The problem is more light hollow brick or gray adhesive paper board used in the partition, sound insulation characteristics only -25dB~ -30DB. The room of most home cinema has one to 2 metope is such structure. Without a doubt, after Windows and doors, this is the place that produces the most leakage of sound. If do not take a measure, the air vibration among hollow brick can cause wall resonance, this kind of circumstance is very adverse to sound quality. There are two specific solutions. One is to tear down the original wall, to create a sound insulation wall; 2 it is to reserve original wall, add wall of a sound partition.

Four: want to make true sound insulation, it is to implement sound insulation measure to the 6 sides of the room naturally. If only on the adjacent room wall (partition) to increase a certain amount of sound insulation performance, then, the ground and ceiling on the impact of sound will be prominent. In order to prevent the occurrence of this situation, completely cut the bottom of the sound insulation is certainly to take corresponding measures on the six sides of the room. To better improve the sound insulation characteristics of the room, it is to recreate a room in the room, namely the so-called "room in room" structure.