一：作（zuò）為窗戶（hù）的隔音對策，通常是（shì）采用雙層窗的（de）結構（gòu）。可以把現有的窗戶保留，再追加一扇窗戶;或者是去（qù）掉已有的窗戶，重新安裝一扇（shàn）按新標準設計的玻璃都一樣厚（hòu），它們的諧振頻率就是相（xiàng）同的。這樣會使該頻率附近的聲音很突出。一般情況下，兩層窗戶的間隔應有20cm-30cm。要達到和混凝土牆同樣的-50dB的隔音效果，比較好兩層玻璃之間的間隔在30cm以上。如（rú）能在此（cǐ）間隔（gé）中再采取一些吸音措（cuò）施（shī），那就更好了。正確地施工，房間能保證-50dB的隔音特（tè）性（xìng）。

　　二：第二個薄弱環節就（jiù）是門。隔音效果比較差的（de）要數一般集體公寓中（zhōng）和簡單家庭（tíng）裝修中裝設的門，粗造地用膠合板（bǎn）釘的門（mén）和門框之（zhī）間有不小的間隙（xì），其隔音特性（xìng）比較多不過-15dB。一般住宅門的隔音特性可達（dá）-25dB~-35dB。性能更高的，監聽室用的那種（zhǒng）鐵門很少在民宅中見到。現在日益增多的雙層防盜門有不錯的隔音特性。

　　三：接下來（lái）的工作是對各種牆壁（bì）隔音（yīn）特性的增強。一般民宅的承重牆（qiáng）用鋼盤混凝土或實心磚的結構，有（yǒu）較好的（de）隔音效果（guǒ）。問題（tí）多（duō）出在隔牆采用的（de）輕型空心（xīn）磚或灰（huī）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（dǔ）牆麵是這（zhè）樣的（de）結構。毫無疑問（wèn），除了窗戶和門之外，這是產生聲音匯（huì）漏比較為嚴重（chóng）地方。如不采（cǎi）取措施，空心磚中間的空氣（qì）振動會引（yǐn）起牆壁共振，這種情形對音質十（shí）分不利。具體解決的辦法有兩種。一是拆掉原有牆（qiáng）壁，重新打（dǎ）造一堵（dǔ）隔音牆;二是保留原（yuán）有（yǒu）的牆壁，增加一堵隔音牆。

　　四：要作到真正的（de）隔音，自然是對房間的六個麵（miàn）實施隔音措施。如果隻對（duì）相鄰房（fáng）間的（de）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又會突出來。為（wéi）了防止這種情況的出現，完全切底（dǐ）的隔音肯定是對（duì）房間的（de）六個麵都采取相應的措施。要更好地提（tí）高房間的隔音特性，就是在（zài）房間中（zhōng）再造（zào）一個房間，即所謂“室中（zhōng）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.