Unverified85% confidenceCautionTime unknown
手机分贝APP不适合用于正式取证,其依赖手机麦克风未经校准,低频段严重失真且高声压易饱和削顶,误差可达±5-10dB,仅适合大致参考
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85%
Confidence
Long-term
Relevance
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