Unverified75% confidenceTradeoffTime unknown
体积便携性与音质/低频下潜矛盾：极小体积（掌心大小）的机型喇叭口径受限，低频白噪音会失真发闷；床头固定使用不必追求便携，选带被动辐射器或稍大腔体的机型低频更干净
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75%
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Unverified音质越好通常体积越大：小巧便携机型受限于扬声器尺寸，低频薄；追求包裹感的低频白噪音需较大腔体，与床头小巧摆放存在矛盾93% similarUnverified体积便携性与音量下潜相冲突：越小巧的机型扬声器口径小，低频（雨声/心跳的低频段）还原差，安抚效果不如稍大机型91% similarUnverified便携性与音质呈反比：小巧的口袋型助眠机扬声器口径小，低频薄难以还原雨声/海浪的沉浸感；追求音质需接受更大摆放体积或改用有源音箱90% similarUnverified便携性与音质/低频表现互斥：口袋型机型（<100g）扬声器口径小，低频雨声/雷声表现薄弱；追求沉浸低频建议选带被动辐射器的桌面款，牺牲便携88% similarUnverified便携小尺寸机型受限于喇叭口径，低频下潜弱，掩蔽能力(遮盖环境噪音)不如大机型；出行便携性和降噪效果需权衡，飞机等高噪环境建议配合耳机输出使用88% similar
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