更新時(shí)間：2022-08-31
文章來(lái)源：http://m.djfrj.net.cn/
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山東舞臺燈光音響設備我們在使用的過(guò)程中，非常反感的就是發(fā)生嗡嗡的聲音，宛如電流漏電一般，我們將這種現象稱(chēng)作為底噪，而底噪與噪音有所不同，所以解決的方法也不同，下面就給大家介紹一下解決方法：
In the process of using Shandong stage lighting and audio equipment, we are very disgusted with the buzzing sound, which is like current leakage. We refer to this phenomenon as bottom noise, and the bottom noise is different from the noise, so the solutions are different. Here are some solutions:
1、將音量電位器音量調到低也就是無(wú)聲，這時(shí)應該沒(méi)有聲音，如果有嗡嗡聲，則是功放機濾波電路電解電容器容量改變、太小所致。
1. Adjust the volume of the volume potentiometer to low, that is, it is silent. At this time, there should be no sound. If there is a buzzing sound, it is caused by the change of the electrolytic capacitor capacity of the filter circuit of the power amplifier.
2、如果開(kāi)大聲音，有很大的嗡嗡聲，是功放機音頻輸入屏蔽不好所致，檢查并排除屏蔽故障。
2. If the sound is loud and there is a loud buzzing, it is caused by the poor shielding of the audio input of the power amplifier. Check and eliminate the shielding fault.
3、各個(gè)原件的外殼該接地的一定要接地、音頻輸入線(xiàn)一定用屏蔽線(xiàn)，并良好的接地。
3. The shell of each original must be grounded, and the audio input line must be shielded and well grounded.
4、喇叭有嘶嘶聲，遇到這種情況大部分是總體屏蔽不好所致或者電源變壓器繞組初次級沒(méi)有隔離好。
4. The horn hisses. In most cases, it is caused by poor overall shielding or poor isolation of the primary winding of the power transformer.
解決辦法：
terms of settlement:
①把電源插頭掉個(gè)頭就好了，如果還不行在電源輸入端（變壓器的電源輸入端）串聯(lián)兩個(gè)4700P的電容器，中心抽頭接機殼，就可以清理或者由于某一音頻輸入端屏蔽不好所致。
① Just turn off the power plug. If it is not possible to connect two 4700p capacitors in series at the power input end (the power input end of the transformer), and the center tap is connected to the cabinet, it can be cleaned or caused by poor shielding of an audio input end.
②與音箱無(wú)關(guān)，很簡(jiǎn)單的排除方法，只要撥掉輸入信號線(xiàn)音箱還有噪聲就是功放本身問(wèn)題，當然是打開(kāi)電源的情況下。
② It has nothing to do with the speaker. It is a very simple method to eliminate the noise of the speaker as long as the input signal line is unplugged. It is the problem of the power amplifier itself, of course, when the power is turned on.
③在電腦到功放輸入端的并接兩只0.01(一路一只)的無(wú)極電容就沒(méi)事了。
③ Connect two 0.01 (one for each way) non-polar capacitors from the computer to the input terminal of the power amplifier.
④高音噪聲：將功放的高音調低些看，另外如果信號線(xiàn)不好也能產(chǎn)生噪音，電腦輸出的都是兩個(gè)聲道的音頻信號，如果功放喇叭配接不合適也可能產(chǎn)生噪音。
④ Treble noise: lower the treble of the power amplifier. In addition, if the signal line is not good, noise can also be generated. The computer outputs audio signals of two channels. If the power amplifier speaker is not properly connected, noise may also be generated.
舞臺燈光音響我們再了解不過(guò)了，它是傳播聲音的一種途徑，在進(jìn)行消低噪之前要先弄清楚來(lái)源，之后再根據問(wèn)題找到解決的方法，保證機器的完整性，避免不必要的麻煩發(fā)生，影響機器的使用。關(guān)注我們
http://m.djfrj.net.cn，了解更多！
We can't understand the stage lighting and sound any more. It is a way of transmitting sound. Before noise reduction, we should first find out the source, and then find a solution according to the problem, so as to ensure the integrity of the machine, avoid unnecessary troubles and affect the use of the machine. Follow us http://m.djfrj.net.cn Yes, learn more!
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