一：作（zuò）為窗戶的隔音對策，通常是采用雙層窗的結構。可以把現有的窗戶保留，再追加一扇窗戶;或者是去掉已有的窗戶，重新安裝一扇按新標準（zhǔn）設計的玻璃（lí）都一樣厚，它們的諧振頻率就（jiù）是相（xiàng）同（tóng）的。這樣（yàng）會使該頻率附近的聲（shēng）音很突出。一般情況下，兩層（céng）窗戶的間隔應有20cm-30cm。要達到和混凝土（tǔ）牆同樣的-50dB的隔（gé）音效果，比較好兩層玻璃之間的間隔在30cm以上。如能在此間隔中再采取一些吸音措施（shī），那就更好了。正確（què）地（dì）施（shī）工，房間能保證-50dB的隔音特性。

　　二：第二個薄弱環（huán）節就是門。隔音效果比較（jiào）差的要數一般集體公寓中和簡（jiǎn）單家庭裝修中裝設的門，粗造地用膠合板（bǎn）釘的門和（hé）門框之間有不（bú）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。性能更高的，監聽（tīng）室用的那種鐵門很少在民（mín）宅中見到。現（xiàn）在日益（yì）增（zēng）多的雙層防盜門有不錯的隔音特性。

　　三：接下來的工作是對各種牆壁隔音特性的增（zēng）強。一般民宅的（de）承（chéng）重（chóng）牆用鋼盤混凝土或實心磚的結構，有較好的隔音效（xiào）果。問題多出在隔牆采用的（de）輕（qīng）型空心磚或灰膠紙板，隔（gé）音特性（xìng）隻有-25dB~-30dB。多數（shù）家庭影院的房（fáng）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（zhè）是產生聲音匯漏比較為嚴重地方（fāng）。如不采取措（cuò）施，空心磚中（zhōng）間的空氣振（zhèn）動會（huì）引起牆壁共振，這種情形對音質十分不利。具體解決的辦法有兩種。一是拆掉原有牆壁，重新打（dǎ）造一堵（dǔ）隔音牆;二是保留原有的牆壁，增（zēng）加一堵隔音牆。

　　四：要作到真正的隔音，自（zì）然是對房間的六個麵實施隔（gé）音措施。如（rú）果隻對相（xiàng）鄰房間的牆壁(隔牆)增加一定的（de）隔音性能，那麽，地麵（miàn）和天花板對聲音的影響又會突出來。為了防止這（zhè）種情況的出現，完全切底（dǐ）的隔音肯定是對房間的六個麵（miàn）都采取相應的措施。要更好地提高房間的隔（gé）音特性，就是在房間中再造一個房（fáng）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.