Unverified85% confidenceDecision RuleTime unknown
降噪深度看主动降噪量（dB），旗舰头戴式可达40-48dB，飞机/地铁通勤优先选低频降噪深、宽频降噪覆盖广的头戴机型，入耳式因物理隔音辅助反而在高频人声降噪上更有优势
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Unverified主动降噪深度看标称降噪量，一般消费级头戴旗舰可达40-50dB，但真实体感更依赖低频降噪曲线；对付地铁、飞机引擎等低频噪音效果显著，对人声等中高频降噪有限，需搭配隔音耳塞设计才能压制人声89% similarUnverified主动降噪深度看有效降噪量而非营销宣传的'42dB'峰值，头戴式在低频（100-300Hz飞机引擎/地铁声）降噪普遍优于入耳式，通勤优先选头戴或旗舰入耳，图书馆/办公室环境降噪意义不大88% similarUnverified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87% similar
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