Win7 How to eliminate the sound of speaker current

The method is as follows:

1, check the "Audio line" interface is correct, through the "audio line" with the computer Green audio interface to connect, and the sound card panel in the pink interface is usually used to connect the microphone, if so the wrong stereo will also emit a faint current sound.

2, to see if the power supply is correct, through the case of audio equipment are marked with rated voltage, too high power supply voltage will cause sound inside the audio generated. If necessary, the regulator can be used for power supply or through the electrical equipment to stabilize the voltage treatment.

3, part of the sound "power" and other noise phenomenon is due to improper software settings caused. In this way, we can do the following: Open the "Control Panel", click on "Sound and Audio"-"Management Audio Devices" entry.

4, electromagnetic interference will also cause sound current sound, the mobile phone, microwave ovens and other easy to produce electromagnetic equipment away from the sound can effectively prevent the emergence of the current sound.

Switch to the Play tab and select Player and click Properties to enter.

5. Switch to the Enhanced tab in the Open window and check "Disable all sound effects", and then click "OK" to complete the setup.

6, if the above method can not solve the problem, and it is possible that the sound of the hardware itself failure, you can only send maintenance points for maintenance.