电脑音响有杂音（There´s a noise in the computer stereo）

电脑音响有杂音（There´s a noise in the computer stereo） 电脑音响有杂音(There's a noise in the computer stereo) Many kinds of situations can cause the computer acoustics to have the noise, for example, the sound box receives the disturbance, the interface or the connection line contact is bad, the sound itself quality is poor and so on. Generally speaking, computer audio is active speaker, will have its internal amplifier, so the noise is inevitable, active speaker of the noise at source can be divided into electromagnetic, mechanical and thermal noise etc.. Electromagnetic interference can mainly be divided into power supply transformer interference and stray electromagnetic wave interference. In general, the power transformer is due to leakage caused by power interference of multimedia speakers, in the conditions allow for installation of transformer shielding effect is very obvious, to the greatest extent, the magnetic flux leakage barrier, the shield can be made with iron materials. We should try our best to choose big brands and solid materials. In addition, the use of external transformers is also a good solution. Stray electromagnetic interference is common, speaker, wire, frequency divider, wireless device or computer host will become interference source. Keep the main speakers as far away from the computer host as possible, and reduce the peripheral wireless devices. Mechanical noise is characteristic of active speakers. During the operation of the power transformer, the vibration of the iron core caused by an alternating magnetic field will produce mechanical noise, which is very similar to the hum made by the fluorescent lamp ballast. Choosing the best quality products is still the best way to prevent this noise. In addition, we can add rubber shock absorber between the transformer and the fixed plate. Another point should be noted that if the potentiometer used for a long time, the metal brush and diaphragm between the dust accumulation and wear and other problems arising from poor contact, rotation will produce noise. If the speaker screw is not tightened, the inverted tube is not in place, when playing the big dynamic music, it also produces mechanical noise. Handling this thermal noise can be achieved by replacing low noise components or reducing component workloads, and lowering the operating temperature is also one of the effective methods. In addition, some computer speakers, when the volume is too large, there will be noise. This is because the output power of the amplifier may be small, which can not be avoided by the large dynamic peak signal in the instant of the music, or because of the overload distortion of the horn. 1. Microphone, mixing is the biggest pull?. Solution: microphone, mix the volume up to eighty percent to ninety. Is your microphone in a stronger state?. Solution: remove the microphone. Because some of the sound cards are not supported. 3. Is there any connection between your microphone and the computer host?. Solution: the microphone and computer host connection broken, and then correct the connection, and see if there is no contact bad. Do you use speakers?. Solution: use the headset. Speakers must be used, note speakers, speakers do not face the microphone (the conditions of their computer rooms need to be spacious and good. 5. See if you have anything with a magnetic field or a sound wave around you. Solution: take the electric appliance with magnetic field (such as mobile phone, fan). Is there anything wrong with your sound card or microphone?. Solution: to record the sound in a free position. 7. Your computer motherboard has no leakage. , Solution: use a wire to expose the metal strips at both ends of the wire, and connect it to the outside of the computer, which is not the key metal part. Head to the ground. (special attention: the wiring is outside the computer host. Never choose the key part. Pay attention to the safety of you and your computer) Are your computer main parts loose or improperly installed?. Solution: listen to your host computer is abnormal noise (such as the voice of the fan is too large, operation is not smooth etc.) according to the expertise of your cleaning or debugging. Is your MSN or other chat program improperly installed?. Or download incomplete. Solution: if you are downloading, because of network or other reasons, the data is missing and the file is incomplete. Can cause discomfort. In addition, improper installation of plug-ins will occur. I suggest you reinstall according to my method: after you turn off, uninstall in the control panel, re download, install. If you have problems with your computer (for example, you need to clean up junk files, remove viruses, Trojan horses) There's also an abnormal sound. Network congestion, speed is not fast, but also cause abnormal sound. Solution: do a good job of computer maintenance. Speed is not enough, sound should be easy to hear out, you can novice Park Theme Area [novice paradise] room, let online management to help you judge. You only have abnormal sounds when you are talking to friends, and they are normal in the chat hall. Solution: Please note that either of you open the inner or open speakers. If yes, please turn it off. (speakers must pay attention to the placement of speakers, and the surrounding environment, if not, please do not use to chat. Friends around the world who understand the stereo can help you with this problem In addition, one side of the firewall is set too high (including LAN users, Internet cafe users), and different broadband users (such as dim sum and Netcom) all have some phonetic problems. This is difficult to solve.