[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

犬类可听频率约67Hz-45kHz,猫约48Hz-85kHz,远高于人类(20Hz-20kHz),因此人用助听器(放大范围通常仅到8kHz)对宠物基本无效,必须选择放大频率上限≥20kHz的专用设备

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