Unverified83% confidenceDecision RuleTime unknown
双腔或三腔无球哨通过多个共振腔产生复合频率，人耳更易辨识且在嘈杂环境（风、水流）中穿透力优于单音哨，救援搜寻优先选多腔设计
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83%
Confidence
Long-term
Relevance
-
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Unverified高频哨（3000Hz以上）声音穿透力强、传播远但在风声掩盖下衰减快；双频/三腔哨发出复合频率，在嘈杂或大风环境更易被识别，救援场景优先选双频结构84% similarUnverified双频复合音穿透力强，在风噪、机械噪音等嘈杂环境中辨识度高于单频哨82% similarUnverified带独立高音单元（丝膜/铝振膜球顶）的两分频音箱高频延展优于全频单喇叭箱，全频单元人声凝聚但高频易发闷82% similarUnverified追求音质应看喇叭配置而非功率虚标：单个全频喇叭+被动辐射器是入门级，双单元（高音+低音分频）才有立体声层次，360度环绕声需要至少3个以上发声单元80% similarUnverified音效种类多≠更好用，多数人固定只用1-2种(如白噪音/雨声/风扇声)，为几十种音效多花钱不划算；选购看核心几种音质是否耐听、有无循环接缝更实际78% similar
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