Unverified85% confidenceDecision RuleTime unknown

地铁通勤/飞机场景需要主动降噪深度≥40dB（如索尼/苹果旗舰级），低频宽频降噪至少覆盖50-1000Hz才能有效压制引擎轰鸣

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入耳降噪耳机category

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Unverified主动降噪深度看dB衰减值：飞机/地铁通勤需≥40dB降噪深度才能有效压制中低频轰鸣，办公室场景25-30dB足够（主要过滤人声与空调噪音）88% similar Unverified通勤降噪需求首选主动降噪深度≥40dB的机型，配合ANC反馈麦克风数量≥4个才能有效压制地铁/飞机低频轰鸣（100-300Hz）88% similar

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