影音室(shi)的(de)(de)墻壁(bi)一(yi)般(ban)多(duo)是前墻硬左(zuo)右側墻吸(xi)音后墻擴散的(de)(de)原則去裝修。聆(ling)聽空(kong)(kong)(kong)間(jian)中要(yao)特別注意不要(yao)用薄板來(lai)釘空(kong)(kong)(kong)腔墻或分隔空(kong)(kong)(kong)間(jian),因為薄木板厚度(du)多(duo)在0.5cm~3cm,3cm以上的(de)(de)厚度(du)很少(shao)見,3cm板吸(xi)125Hz頻率(lv)(lv)(lv)相(xiang)當高,有0.28吸(xi)收率(lv)(lv)(lv),頻率(lv)(lv)(lv)越往(wang)上吸(xi)音率(lv)(lv)(lv)就(jiu)越下降。板子(zi)越薄時(shi),125Hz的(de)(de)吸(xi)音率(lv)(lv)(lv)就(jiu)越低(di),但250Hz的(de)(de)吸(xi)音率(lv)(lv)(lv)就(jiu)越高。家庭(ting)裝修中,多(duo)是用2cm板來(lai)分隔房間(jian),而且板子(zi)后面還有空(kong)(kong)(kong)腔,空(kong)(kong)(kong)腔會令吸(xi)音率(lv)(lv)(lv)增加,這使得(de)中低(di)頻的(de)(de)量(liang)感更少(shao),聲音更單薄。