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本文结合实例分析了现场直播或录制节目时二次调音过程中的电流声消除问题,给出了使用平衡接法和4芯电缆,屏蔽层单端接地,使用音频隔离变压器等解决方法。
In this paper, the problem of current acoustic elimination in secondary tuning process is analyzed with live broadcasting or recording program. The solutions of using balanced connection, 4-core cable, single-end grounding of shielding layer and using audio isolation transformer are given.