影音(yin)(yin)室的(de)墻壁一般多(duo)是前(qian)墻硬(ying)左(zuo)右(you)側墻吸(xi)(xi)(xi)音(yin)(yin)后墻擴散的(de)原則(ze)去(qu)裝修(xiu)。聆(ling)聽空(kong)間(jian)中要特別注意(yi)不要用(yong)薄(bo)板(ban)來釘空(kong)腔墻或分隔(ge)空(kong)間(jian),因為薄(bo)木板(ban)厚度多(duo)在0.5cm~3cm,3cm以(yi)上的(de)厚度很少見(jian),3cm板(ban)吸(xi)(xi)(xi)125Hz頻率(lv)(lv)(lv)(lv)(lv)(lv)相當高,有0.28吸(xi)(xi)(xi)收率(lv)(lv)(lv)(lv)(lv)(lv),頻率(lv)(lv)(lv)(lv)(lv)(lv)越(yue)(yue)(yue)往上吸(xi)(xi)(xi)音(yin)(yin)率(lv)(lv)(lv)(lv)(lv)(lv)就(jiu)越(yue)(yue)(yue)下降。板(ban)子越(yue)(yue)(yue)薄(bo)時,125Hz的(de)吸(xi)(xi)(xi)音(yin)(yin)率(lv)(lv)(lv)(lv)(lv)(lv)就(jiu)越(yue)(yue)(yue)低,但250Hz的(de)吸(xi)(xi)(xi)音(yin)(yin)率(lv)(lv)(lv)(lv)(lv)(lv)就(jiu)越(yue)(yue)(yue)高。家庭裝修(xiu)中,多(duo)是用(yong)2cm板(ban)來分隔(ge)房(fang)間(jian),而且板(ban)子后面還(huan)有空(kong)腔,空(kong)腔會令吸(xi)(xi)(xi)音(yin)(yin)率(lv)(lv)(lv)(lv)(lv)(lv)增加(jia),這(zhe)使得中低頻的(de)量感更少,聲(sheng)音(yin)(yin)更單(dan)薄(bo)。