更新時(shí)間：2022-07-05
文章來(lái)源：http://m.74seba.com/
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日常中我們經(jīng)常會(huì)遇到音響出現(xiàn)電流聲的情況，即使在沒(méi)有任何音樂(lè)的情況下也會(huì)出現(xiàn)，音量越大，雜音也越大，這個(gè)是為什么呢？
山東會(huì)議室音響廠家告訴你：
In daily life, we often encounter current sound in the sound, even without any music. The higher the volume, the greater the noise. Why? Shandong conference room audio manufacturer tells you:
我們要考慮音響鄰近是否有其他家電作業(yè)，比方電視、手機(jī)等，他們的信號(hào)輻射會(huì)對(duì)音響形成攪擾，需要將這些物件遠(yuǎn)離音響設(shè)備。
We need to consider whether there are other household appliances near the sound, such as TVs, mobile phones, etc. their signal radiation will disturb the sound, so we need to keep these objects away from the sound equipment.
然后我們要考慮是否音響本身出現(xiàn)了問(wèn)題，檢查音響處的接口銜接是否松動(dòng)，我們可以把所有的插口重新插一遍，如果情況還存在，那么音響可能出現(xiàn)了電磁干擾、機(jī)械噪音、熱燥等原因?qū)е码娏饕舻某霈F(xiàn)。
Then we should consider whether there is a problem with the sound itself, and check whether the interface connection at the sound is loose. We can plug all the sockets again. If the situation still exists, the sound may have electromagnetic interference, mechanical noise, heat dryness and other reasons, resulting in the occurrence of streaming sound.
機(jī)械噪音，機(jī)械噪音是有源音響特有的。電源變壓器在工作過(guò)程中，交變磁場(chǎng)引起的鐵芯震動(dòng)就會(huì)產(chǎn)生機(jī)械噪音，這很類(lèi)似于日光燈鎮(zhèn)流器所發(fā)出的嗡嗡聲。選擇質(zhì)量好的產(chǎn)品仍然是預(yù)防這種噪音的好辦法。另外，我們可以在變壓器和固定板之間加裝橡膠減震層。
Mechanical noise, mechanical noise is unique to active sound. During the operation 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 emitted by the fluorescent lamp ballast. Choosing good quality products is still a good way to prevent this kind of noise. In addition, we can install a rubber damping layer between the transformer and the fixed plate.
如何音響的電流音？
How to eliminate the current sound of sound?
熱噪，如果電位器使用的時(shí)間較長(zhǎng)，金屬刷與膜片之間就會(huì)因灰塵堆積和磨損等問(wèn)題產(chǎn)生接觸不良，旋轉(zhuǎn)時(shí)就會(huì)產(chǎn)生噪聲。如果音響的螺絲沒(méi)有旋緊，倒相管處理不到位，在播放大動(dòng)態(tài)音樂(lè)時(shí)，也會(huì)產(chǎn)生機(jī)械噪音。處理這種熱噪聲可以通過(guò)更換低噪聲元件或是降低元件工作負(fù)荷的方法，另外，降低工作溫度也是也是行之有效的方法之一。
Thermal noise. If the potentiometer is used for a long time, there will be poor contact between the metal brush and the diaphragm due to dust accumulation and wear, and noise will be generated during rotation. If the screws of the stereo are not tightened and the inverter is not handled in place, mechanical noise will also be generated when playing large dynamic music. This kind of thermal noise can be dealt with by replacing low-noise components or reducing the working load of components. In addition, reducing the working temperature is also one of the effective methods.
電磁干擾電磁干擾又主要可以分為電源變壓器干擾和雜散電磁波干擾。電源變壓器干擾由于多媒體音響的電源漏磁造成的，在條件允許的情況下為變壓器加裝屏蔽罩的效果非常明顯，可以大程度的將漏磁阻擋，屏蔽罩只能用鐵型材料制作。
Electromagnetic interference electromagnetic interference can be divided into power transformer interference and stray electromagnetic wave interference. The interference of the power transformer is caused by the magnetic leakage of the power supply of the multimedia audio. If conditions permit, the effect of installing a shielding cover for the transformer is very obvious, which can block the magnetic leakage to a large extent. The shielding cover can only be made of iron material.
雜散電磁波干擾比較常見(jiàn)，音響導(dǎo)線、分頻器、無(wú)線設(shè)備或者電腦主機(jī)都會(huì)成為干擾源。將主音響在允許條件下盡量遠(yuǎn)離電腦主機(jī)，并且減少周邊無(wú)線設(shè)備，也就是剛才說(shuō)的一點(diǎn)。
Stray electromagnetic wave interference is common, and audio wires, frequency dividers, wireless devices or computer hosts will become interference sources. Keep the main audio as far away from the computer host as possible under the allowable conditions, and reduce the surrounding wireless devices, that is, the point just mentioned.
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