山东舞台灯光音响设备我们在使用的过程中，非常反感的就是发生嗡嗡的声音，宛如电流漏电一般，我们将这种现象称作为底噪，而底噪与噪音有所不同，所以解决的方法也不同，下面就给大家介绍一下解决方法：
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、将音量电位器音量调到低也就是无声，这时应该没有声音，如果有嗡嗡声，则是功放机滤波电路电解电容器容量改变、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、如果开大声音，有很大的嗡嗡声，是功放机音频输入屏蔽不好所致，检查并排除屏蔽故障。
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、各个原件的外壳该接地的一定要接地、音频输入线一定用屏蔽线，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、喇叭有嘶嘶声，遇到这种情况大部分是总体屏蔽不好所致或者电源变压器绕组初次级没有隔离好。
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.
解决办法：
terms of settlement:
①把电源插头掉个头就好了，如果还不行在电源输入端（变压器的电源输入端）串联两个4700笔的电容器，中心抽头接机壳，就可以清理或者由于某一音频输入端屏蔽不好所致。
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与音箱无关，很简单的排除方法，只要拨掉输入信号线音箱还有噪声就是功放本身问题，当然是打开电源的情况下。
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在电脑到功放输入端的并接两只0.01(一路一只)的无极电容就没事了。
③ Connect two 0.01 (one for each way) non-polar capacitors from the computer to the input terminal of the power amplifier.
④高音噪声：将功放的高音调低些看，另外如果信号线不好也能产生噪音，电脑输出的都是两个声道的音频信号，如果功放喇叭配接不合适也可能产生噪音。
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.
舞台灯光音响我们再了解不过了，它是传播声音的一种途径，在进行消低噪之前要先弄清楚来源，之后再根据问题找到解决的方法，保证机器的完整性，避免不必要的麻烦发生，影响机器的使用。关注我们
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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 Yes, learn more!
