目前进口音响及家用“卡拉OK”伴唱用传声器,大都易产生一种交流声。细查其原因很简单。厂家为降低生产成本,减少制作程序,将电缆装入传声器后即分为两根单独的导线。由于失去了屏蔽,传声器外壳又是塑料制品,当手握住传声器时,便在导线上感应出一个交流信号,经放大后由扬声器放出。改制方法:拆开传声器,将信号线从开关 At present imports of audio and home “karaoke OK” accompaniment with a microphone, most likely to produce a kind of exchange of voices. Scrutinize the reason is very simple. Manufacturers to reduce production costs and reduce the production process, the cable into the microphone is divided into two separate wires. Due to the loss of shielding, the microphone housing is a plastic product. When the hand holds the microphone, an ac signal is induced on the wire and amplified by the speaker. Restructuring methods: open the microphone, the signal from the switch