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                ## 無線麥克風輸出的聲音為什么會有較大的嗡嗡聲(電流聲)? 一般情況下,高品質無線麥克風的聲音輸出是沒有明顯的電流聲。電流聲干擾可能由于用戶現場安裝的情況引起。最常見的原因是,施工時使用了較低品質的音頻傳輸線連接無線麥接收器與攝像機,導致音頻電平信號異常。音頻傳輸線越長,對它的品質要求越高。為了遠距離傳輸高質量音頻電平信號,線材的阻抗要足夠低,并且需要帶屏蔽網層。如果出現輸出聲音帶嗡嗡聲的情況,可以更換音頻線(例如使用廠家配套)進行對比,即可確定此原因。
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