在體(ti)(ti)育(yu)館、車間等大空間內，為(wei)了吸(xi)聲(sheng)降噪，常(chang)常(chang)使用以離(li)心玻璃棉氈為(wei)主要(yao)吸(xi)聲(sheng)材(cai)料(liao)的吸(xi)聲(sheng)體(ti)(ti)。吸(xi)聲(sheng)體(ti)(ti)可以根據要(yao)求制成板(ban)狀、柱狀、錐(zhui)體(ti)(ti)或其他(ta)異(yi)型體(ti)(ti)。吸(xi)聲(sheng)體(ti)(ti)內部(bu)填充離(li)心玻璃棉，表(biao)面(mian)使用透聲(sheng)面(mian)層(ceng)包裹(guo)。由于(yu)吸(xi)聲(sheng)體(ti)(ti)有多個表(biao)面(mian)吸(xi)聲(sheng)，吸(xi)聲(sheng)效率很高。離(li)(li)(li)心(xin)(xin)玻璃棉(mian)氈(zhan)的(de)(de)(de)質量(liang)應(ying)該要(yao)如何選(xuan)擇呢？離(li)(li)(li)心(xin)(xin)玻璃棉(mian)氈(zhan)是一種歷(li)史久、用(yong)途廣的(de)(de)(de)吸音(yin)材料，廣泛的(de)(de)(de)應(ying)用(yong)于輕型外(wai)(wai)(wai)(wai)墻(qiang)(qiang)保(bao)溫(wen)板(ban)(ban)(ban)(ban)的(de)(de)(de)隔音(yin)、保(bao)溫(wen)、防火(huo)等。因為通常被用(yong)于輕型外(wai)(wai)(wai)(wai)墻(qiang)(qiang)保(bao)溫(wen)板(ban)(ban)(ban)(ban)的(de)(de)(de)隔音(yin)。這種輕型外(wai)(wai)(wai)(wai)墻(qiang)(qiang)保(bao)溫(wen)板(ban)(ban)(ban)(ban)的(de)(de)(de)典型結構是：石(shi)膏板(ban)(ban)(ban)(ban)+龍骨(gu)+離(li)(li)(li)心(xin)(xin)玻璃棉(mian)氈(zhan)板(ban)(ban)(ban)(ban)+石(shi)膏板(ban)(ban)(ban)(ban)離(li)(li)(li)心(xin)(xin)玻璃棉(mian)氈(zhan)板(ban)(ban)(ban)(ban)在這里起(qi)到的(de)(de)(de)是吸音(yin)作用(yong)，吸收(shou)部(bu)分穿過石(shi)膏板(ban)(ban)(ban)(ban)的(de)(de)(de)聲波(bo)，可(ke)以降低聲波(bo)在石(shi)膏板(ban)(ban)(ban)(ban)、龍骨(gu)、石(shi)膏板(ban)(ban)(ban)(ban)之間形(xing)成的(de)(de)(de)空腔中(zhong)的(de)(de)(de)來回反射(she)，從(cong)而達到提(ti)高外(wai)(wai)(wai)(wai)墻(qiang)(qiang)保(bao)溫(wen)板(ban)(ban)(ban)(ban)隔音(yin)量(liang)的(de)(de)(de)作用(yong)哦。建材市(shi)場所售離(li)(li)(li)心(xin)(xin)玻璃棉(mian)氈(zhan)密度一般不(bu)超過60kg/m3的(de)(de)(de)，隔音(yin)效果不(bu)佳(jia)且(qie)手感也(ye)是非常軟的(de)(de)(de)，容易因而完全喪失(shi)它的(de)(de)(de)隔音(yin)功能；膠量(liang)——專用(yong)離(li)(li)(li)心(xin)(xin)玻璃棉(mian)氈(zhan)板(ban)(ban)(ban)(ban)采(cai)用(yong)手工方(fang)式續棉(mian)，保(bao)證了棉(mian)層的(de)(de)(de)均勻和強度，通過這樣的(de)(de)(de)高溫(wen)壓制而成。