影音(yin)室的(de)墻壁一般(ban)多(duo)是(shi)(shi)前墻硬左(zuo)右側墻吸(xi)音(yin)后(hou)墻擴散的(de)原則去裝修(xiu)。聆聽空(kong)(kong)間(jian)中(zhong)(zhong)要(yao)(yao)特別(bie)注意不要(yao)(yao)用薄(bo)板(ban)來釘(ding)空(kong)(kong)腔墻或(huo)分(fen)隔空(kong)(kong)間(jian),因為薄(bo)木(mu)板(ban)厚(hou)度(du)多(duo)在(zai)0.5cm~3cm,3cm以上的(de)厚(hou)度(du)很(hen)少(shao)見,3cm板(ban)吸(xi)125Hz頻率(lv)相當高,有(you)0.28吸(xi)收率(lv),頻率(lv)越往上吸(xi)音(yin)率(lv)就越下(xia)降。板(ban)子(zi)(zi)越薄(bo)時,125Hz的(de)吸(xi)音(yin)率(lv)就越低,但250Hz的(de)吸(xi)音(yin)率(lv)就越高。家庭裝修(xiu)中(zhong)(zhong),多(duo)是(shi)(shi)用2cm板(ban)來分(fen)隔房間(jian),而且板(ban)子(zi)(zi)后(hou)面還有(you)空(kong)(kong)腔,空(kong)(kong)腔會令吸(xi)音(yin)率(lv)增加(jia),這使得中(zhong)(zhong)低頻的(de)量感更(geng)少(shao),聲音(yin)更(geng)單薄(bo)。