隔音墻（acoustic）指的(de)(de)(de)是為(wei)減輕行車(che)噪聲(sheng)對附(fu)近居民的(de)(de)(de)影響而設置(zhi)在鐵路和(he)公(gong)路側旁的(de)(de)(de)墻式構(gou)造物。

隔(ge)(ge)音(yin)(yin)墻（聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障）主要用(yong)(yong)(yong)于高速公路(lu)(lu)(lu)(lu)、高架復合(he)道(dao)路(lu)(lu)(lu)(lu)、城市輕軌地(di)鐵等交通市政設(she)施(shi)中(zhong)(zhong)的(de)(de)隔(ge)(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)降噪(zao)、控(kong)制(zhi)交通噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)對附(fu)近城市區(qu)(qu)域的(de)(de)影響(xiang)，也可用(yong)(yong)(yong)于工(gong)廠(chang)和其(qi)它噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)源的(de)(de)隔(ge)(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)降噪(zao)。聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障分(fen)為(wei)純隔(ge)(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)反(fan)射(she)型聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障，和吸聲(sheng)(sheng)(sheng)(sheng)(sheng)與隔(ge)(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)相結(jie)合(he)的(de)(de)復合(he)型聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障，后者是(shi)更為(wei)有(you)(you)效的(de)(de)隔(ge)(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)做(zuo)出來的(de)(de)。大多數的(de)(de)聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障都選用(yong)(yong)(yong)吸聲(sheng)(sheng)(sheng)(sheng)(sheng)和隔(ge)(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)混(hun)合(he)型的(de)(de)產(chan)品(pin)，該型產(chan)品(pin)的(de)(de)特(te)(te)點是(shi)對道(dao)路(lu)(lu)(lu)(lu)噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)產(chan)生(sheng)和傳遞特(te)(te)征有(you)(you)針對性地(di)控(kong)制(zhi)。如汽車與道(dao)路(lu)(lu)(lu)(lu)摩擦聲(sheng)(sheng)(sheng)(sheng)(sheng)或機(ji)車與軌道(dao)摩擦聲(sheng)(sheng)(sheng)(sheng)(sheng)在(zai)道(dao)路(lu)(lu)(lu)(lu)下部(bu)，聲(sheng)(sheng)(sheng)(sheng)(sheng)音(yin)(yin)有(you)(you)通過屏(ping)(ping)體(ti)上(shang)部(bu)繞(rao)射(she)的(de)(de)特(te)(te)征，所以在(zai)設(she)計上(shang)采用(yong)(yong)(yong)上(shang)下吸聲(sheng)(sheng)(sheng)(sheng)(sheng)，中(zhong)(zhong)間隔(ge)(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)結(jie)構(gou)，這(zhe)(zhe)樣可以有(you)(you)效地(di)減(jian)弱噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)的(de)(de)繞(rao)射(she)；聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障的(de)(de)中(zhong)(zhong)間使用(yong)(yong)(yong)透明(ming)的(de)(de)反(fan)射(she)型隔(ge)(ge)聲(sheng)(sheng)(sheng)(sheng)(sheng)板，能有(you)(you)效地(di)中(zhong)(zhong)斷聲(sheng)(sheng)(sheng)(sheng)(sheng)波的(de)(de)傳播途(tu)徑；同時也為(wei)司機(ji)和居(ju)民(min)提供一個開闊的(de)(de)視野環境。建筑聲(sheng)(sheng)(sheng)(sheng)(sheng)學(xue)領(ling)域，通過聲(sheng)(sheng)(sheng)(sheng)(sheng)學(xue)治理，控(kong)制(zhi)混(hun)響(xiang)時間及室(shi)內聲(sheng)(sheng)(sheng)(sheng)(sheng)環境，滿足專業場(chang)館要求。根據聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障應用(yong)(yong)(yong)環境，聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障分(fen)為(wei)交通隔(ge)(ge)音(yin)(yin)屏(ping)(ping)障、設(she)備噪(zao)音(yin)(yin)衰減(jian)隔(ge)(ge)音(yin)(yin)屏(ping)(ping)障、工(gong)業廠(chang)界隔(ge)(ge)音(yin)(yin)屏(ping)(ping)障。按材(cai)質分(fen)類又(you)(you)可以分(fen)為(wei)以下幾(ji)類：金(jin)屬(shu)聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障（金(jin)屬(shu)百葉、金(jin)屬(shu)篩網孔）、混(hun)凝(ning)(ning)土(tu)(tu)聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障（輕質混(hun)凝(ning)(ning)土(tu)(tu)、高強混(hun)凝(ning)(ning)土(tu)(tu)）、PC聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障、玻璃鋼聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障等。按不同的(de)(de)用(yong)(yong)(yong)途(tu)又(you)(you)可以分(fen)為(wei)這(zhe)(zhe)樣幾(ji)類：鐵路(lu)(lu)(lu)(lu)聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障、公路(lu)(lu)(lu)(lu)聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障、城市景(jing)觀聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障、居(ju)民(min)區(qu)(qu)降噪(zao)聲(sheng)(sheng)(sheng)(sheng)(sheng)屏(ping)(ping)障等。 

隔音(yin)墻(qiang)也(ye)指錄音(yin)間(jian)或(huo)攝影棚內使(shi)用(yong)的活動墻(qiang)板(ban)，通常一(yi)面為(wei)吸音(yin)材(cai)料(liao)，另一(yi)面為(wei)隔音(yin)及(ji)反射材(cai)料(liao)。其作用(yong)是減少錄音(yin)間(jian)內各音(yin)源(yuan)之串音(yin)，或(huo)利(li)用(yong)墻(qiang)板(ban)兩面不同的吸音(yin)特性，調整音(yin)源(yuan)的音(yin)質。  

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