After plugging in the headphones, the noise problem on the desktop is not a fault of the headphones themselves.

When a new desktop computer makes a sizzling sound when you plug in headphones, it is not a problem with the headphones

First of all, it is certain that the headphones are good. Only good headphones can produce current sound. Headphones with high sensitivity can expose problems that are usually unresponsive. As this saying goes, good headphones require good equipment.

The reasons for computer current sound are as follows:

First, it is caused by electrostatic induction.

Computers are high-frequency equipment. The power supply, CPU, hard disk, and motherboard all generate heat, so the computer is relatively dry. As components age, their antistatic capabilities will become worse and worse. If a modern home is supplemented with carpets, plywood, wooden boards, etc., the dryness coefficient will be larger and the noise level will be larger. In the autumn and winter seasons, when the human body is close to the computer, especially when the hands are close to speakers, microphones and other accessories, A large amount of static electricity will be induced and amplified through the speaker, or transmitted to the network and amplified through the other party's speaker, causing current sound. The fundamental solution to this type of problem is to improve the humidity of the environment and reduce electrostatic induction. The temporary solution is to connect a ground wire to the computer case. A professional ground wire must be buried three feet underground with a steel bar or iron block, and then connected. Use a yellow-green special ground wire to lead to the wire interface of the household appliance socket, which is marked with the word "G" (or It is a sign of one vertical and three horizontal lines), be sure not to connect it to the "L" or "N", which are the live and neutral wires.

The second is that the electrolytic capacitor in the power amplifier or the motherboard is aging, causing current sound.

This requires professional polishing, generally increasing the capacitance is sufficient. Choose an electrolytic capacitor with a withstand voltage of 25 volts or more, 4700 or 10000 uF, and replace the original capacitor or connect it in parallel with wires. Pay attention to the glue to fix it and prevent it from touching and short-circuiting other circuits.

One thing to note is that the capacitor should not be too large. Theoretically, the larger the capacitor, the better the filtering effect, but the transformer will not be able to withstand it. It must be a cost issue after all. It is impossible for manufacturers to use large transformers.

The third is the reason for reverberation. Sometimes the microphone is pointed at the speaker, which will cause reverberation. Just move it in the direction or adjust the volume.

Fourth is that the power supply is broken, and the high-frequency wave filtering part inside is faulty. The solution is to try another power supply.

There is a current sound when plugging in the headphones on the laptop

You can try the following methods to solve the problem:

1. Adjust the microphone properties, open the "Sound" dialog box, select "Play", double-click "Speaker", select "Level", set the "Microphone" value to 0, return to the "Sound" dialog box, select "Recording" ", set the "Microphone Enhancement" value to 0 in the same way.

2. Turn off PC Beep. If you cannot find the location of the buzzer, you can click "View" in "Device Manager", check "Show Hidden Devices", and expand "Non-Plug and Play Drivers". Driver", right-click on "Beep" and select "Disable".

3. Eliminate the surrounding magnetic field and see if there are mobile phones or other high-power electrical appliances around the computer. If so, you should move these appliances to a farther location or isolate them with iron plates to eliminate electromagnetic interference. Solve the noise problem in the headphones.

4. Eliminate static electricity on the main case casing. If the power strip you use is a two-wire one, it is likely that there is static electricity on the laptop or desktop main case casing, causing the sound of current in the headphones. You can replace the power strip with a three-wire one. , or tie a wire to the screw on the back of the main chassis to the ground.

5. Replace high-quality headphones. If the sound of current occurs only in a specific pair of headphones, then the quality of the headphones itself should be too poor or damaged. You should replace the headphones. It is best to choose high-end ones with relatively strong anti-electromagnetic interference capabilities. Brand, don't be greedy for cheap prices.

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