[KongchangAI]
Unverified88% confidenceDecision RuleTime unknown

低频吸收有效下限由声学面板厚度决定:10cm厚岩棉吸声体有效下限约125Hz,20cm厚可下探至80Hz左右,若要压制60Hz以下低频驻波必须用角落陷阱(bass trap)而非平面板

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