Sometimes the sound of our computer's speakers suddenly appears in the process of using it. It is the current sound. It doesn't open any music. The louder the volume, the louder the noise. It used to be good. It suddenly happened like this. It is bad. Yet? Sometimes, regardless of it, it will be better after a while. What is the matter? Some friends' speakers are seven hundred or even thousands of dollars, and they can't be said to change. Today, Xiaobian will give you an analysis of the specific reasons for the current in the computer speakers. Enter the topic below. First of all, it is very likely that there is a problem with the speaker itself, and there is no problem with the audio input port of the computer. The speaker itself is likely to have electromagnetic interference, mechanical noise, thermal noise and other reasons. First, electromagnetic interference Electromagnetic interference can be mainly divided into power transformer interference and stray electromagnetic interference. 1. Power transformer interference Due to the magnetic leakage of the multimedia speaker, the effect of adding a shield to the transformer is very obvious when conditions permit. It can block the magnetic leakage to the greatest extent. The shield can only be made of iron material. . We should try our best to choose big brands and solid materials. In addition, using external transformers is also a good solution. 2, stray electromagnetic interference is more common, speaker wires, crossovers, wireless devices or computer hosts will become interference sources. Keep the main speakers as far as possible from the host computer and reduce peripheral wireless devices. Second, mechanical noise Mechanical noise is unique to active speakers. During the working process of the power transformer, the iron core vibration caused by the alternating magnetic field will produce mechanical noise, which is very similar to the buzzing sound of the fluorescent lamp ballast. Choosing a good quality product is still the best way to prevent this noise. In addition, we can add a rubber shock absorber layer between the transformer and the fixed plate. 3. Thermal noise If the potentiometer is used for a long time, the metal brush and the diaphragm will have poor contact due to problems such as dust accumulation and wear, and noise will be generated when rotating. If the speaker's screws are not tightened, the inverted tube is not handled properly, and mechanical noise is also generated when playing large dynamic music. Dealing with such thermal noise can be done by replacing low-noise components or reducing the component's workload. In addition, lowering the operating temperature is also an effective method. In addition, some computer speakers, when the volume is adjusted too large, there will be noise. This situation is because the power output of the power amplifier may be small, it cannot be avoided by the large dynamic peak signal of the music moment, or because the sound of the speaker is caused by many kinds of situations, such as the speaker is disturbed, the interface or the connection line is poorly connected, and the speaker The quality itself is poor and so on. In addition to the speaker itself, there may be other problems, such as the sound card is not correct, the active speaker input is connected to the speaker output of the sound card, the sound card driver problem and so on. First, the sound card is not correct. The sound card does not closely meet with the motherboard expansion slot, and the sound card and the motherboard expansion slot are slightly misaligned. This phenomenon is common on ISA cards or PCI cards. It is a common problem. As long as the sound card is inserted correctly, it can handle the problem. Second, the active speaker input terminal is connected to the speaker output of the sound card. The active speaker should be connected to the Line-Out end of the sound card. The output signal is not amplified by the sound card, and the noise is much smaller. Some sound cards only need one output, Line-Out or Speaker depends on the jumper resolution on the card. The default mode is often Speaker, so if you need it, you have to unplug the sound card to adjust the jumper. Third, the sound card driver problem You may not use the system's own driver, using a third-party sound card, you can change to the official website sound card driver to try, maybe the reason for the driver. Sometimes the sound of our computer's speakers suddenly appears in the process of using it. It is the current sound. It doesn't open any music. The louder the volume, the louder the noise. It used to be good. It suddenly happened like this. It is bad. Yet? Sometimes, regardless of it, it will be better after a while. What is the matter? Some friends' speakers are seven hundred or even thousands of dollars, and they can't be said to change. Today, Xiaobian will give you an analysis of the specific reasons for the current in the computer speakers. Enter the topic below. First of all, it is very likely that there is a problem with the speaker itself, and there is no problem with the audio input port of the computer. The speaker itself is likely to have electromagnetic interference, mechanical noise, thermal noise and other reasons. First, electromagnetic interference Electromagnetic interference can be mainly divided into power transformer interference and stray electromagnetic interference. 1. Power transformer interference Due to the magnetic leakage of the multimedia speaker, the effect of adding a shield to the transformer is very obvious when conditions permit. It can block the magnetic leakage to the greatest extent. The shield can only be made of iron material. . We should try our best to choose big brands and solid materials. In addition, using external transformers is also a good solution. 2, stray electromagnetic interference is more common, speaker wires, crossovers, wireless devices or computer hosts will become interference sources. Keep the main speakers as far as possible from the host computer and reduce peripheral wireless devices. Second, mechanical noise Mechanical noise is unique to active speakers. During the working process of the power transformer, the iron core vibration caused by the alternating magnetic field will produce mechanical noise, which is very similar to the buzzing sound of the fluorescent lamp ballast. Choosing a good quality product is still the best way to prevent this noise. In addition, we can add a rubber shock absorber layer between the transformer and the fixed plate. 3. Thermal noise If the potentiometer is used for a long time, the metal brush and the diaphragm will have poor contact due to problems such as dust accumulation and wear, and noise will be generated when rotating. If the speaker's screws are not tightened, the inverted tube is not handled properly, and mechanical noise is also generated when playing large dynamic music. Dealing with such thermal noise can be done by replacing low-noise components or reducing the component's workload. In addition, lowering the operating temperature is also an effective method. In addition, some computer speakers, when the volume is adjusted too large, there will be noise. This situation is because the power output of the power amplifier may be small, it cannot be avoided by the large dynamic peak signal of the music moment, or because the sound of the speaker is caused by many kinds of situations, such as the speaker is disturbed, the interface or the connection line is poorly connected, and the speaker The quality itself is poor and so on. In addition to the speaker itself, there may be other problems, such as the sound card is not correct, the active speaker input is connected to the speaker output of the sound card, the sound card driver problem and so on. First, the sound card is not correct. The sound card does not closely meet with the motherboard expansion slot, and the sound card and the motherboard expansion slot are slightly misaligned. This phenomenon is common on ISA cards or PCI cards. It is a common problem. As long as the sound card is inserted correctly, it can handle the problem. Second, the active speaker input terminal is connected to the speaker output of the sound card. The active speaker should be connected to the Line-Out end of the sound card. The output signal is not amplified by the sound card, and the noise is much smaller. Some sound cards only need one output, Line-Out or Speaker depends on the jumper resolution on the card. The default mode is often Speaker, so if you need it, you have to unplug the sound card to adjust the jumper. Third, the sound card driver problem You may not use the system's own driver, using a third-party sound card, you can change to the official website sound card driver to try, maybe the reason for the driver.