推荐回答（1个）
本人觉得有以下几种情况，楼主您慢慢排除：
最大的可能就是，你的主机静电太多，如果你的麦克风是金属的话，可能就有影响。
另外，一下原因值得一思考一下：
1。可能是耳麦插进电脑主板的那个插口有问题，可能松了，插进去不牢固。（可能性最大，我们平时用耳机的时候也有这种情况，换主机后面的插口看看会不会好点）
2。你的那个麦克风附近有电磁波干扰源，检查一下的你的麦克风附近有没有手机，无线路由，无线电话，电视机等等能发出电磁波辐射干扰的。如果你用的是台式机的话，请把你的麦克风拿远离主机，因为主机也是发出电磁波辐射的。
3。你买来的麦克风质量可能不过关，换一个试一试
4。你的声卡驱动问题（这个可能性最小，那你买电脑的时候那张主板光碟出来重新驱动一下，主板原配的驱动是最好的）
5。肯能是你的声卡硬件，或者那个音响的问题。
不要说我把所有原因都说出来，以上的都有可能，你的一个一个排除。
希望能帮助到你
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