The reasons and solutions are as follows
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3, the computer has static electricity, is also the main reason. Touch the iron part of the computer case with your hand. If the sound of the current disappears, connect one end of the copper wire to a screw in the back of the computer and ground the other end. The results are excellent.
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4. Whether the microphone is in the enhanced state. Solution: Remove the microphone reinforcement. Because some sound cards do not support