Unverified88% confidenceDecision RuleTime unknown

主动降噪深度看被动隔音+ANC总和，头戴式因耳罩物理隔音更好，实测低频降噪普遍比入耳式多5-10dB，长途飞机/高铁场景优先头戴式

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Unverified长途飞行降噪首选头戴式而非入耳式：头戴式被动隔音+ANC双重降噪对持续低频引擎声压制更彻底，且长时间佩戴不产生耳道压迫感88% similar Unverified头戴式降噪耳机降噪深度普遍比入耳式高5-10dB，且被动隔音更好，长途飞行首选头戴式；但入耳式在便携和运动场景更实用88% similar Unverified主动降噪深度看低频衰减，头戴式旗舰通常达40-48dB，飞机引擎/地铁轰鸣属于低频，头戴降噪明显优于入耳式；人声、键盘声属于中高频，多数降噪耳机无能为力85% similar

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