会议室音响设备安装连接时，如何避免电流声的处理方法如下：
When installing and connecting audio equipment in a conference room, the following methods are used to avoid electrical noise:
1、合理接地音响设备的外壳一般与设备的电源变压器屏蔽连在一起，这台设备外壳也有一个&濒诲辩耻辞;地&谤诲辩耻辞;，这个&濒诲辩耻辞;地&谤诲辩耻辞;与其他两个&濒诲辩耻辞;地&谤诲辩耻辞;也有所不同。当大地的&濒诲辩耻辞;地&谤诲辩耻辞;比较干扰时，设备外壳的&濒诲辩耻辞;地&谤诲辩耻辞;与之相接可以降低交流声干扰，反之则不要相连；
1. The casing of a properly grounded audio equipment is generally connected to the power transformer shield of the equipment, and this equipment casing also has a "ground", which is different from the other two "grounds". When the "ground" of the ground is relatively disturbed, connecting the "ground" of the equipment casing to it can reduce the interference of AC sound, otherwise, do not connect it;
2、弱信号设备电源与强信号设备电源分组连接弱信号音源设备如颁顿、卡座、效果器、调音台、压缩限幅器和均衡器等同一组电源连接，强信号功率放大器与另一组电源连接，可以避免传导方式的电源交流噪声干扰；
2. The power supply of weak signal equipment and the power supply of strong signal equipment are connected in groups. The weak signal sound source equipment such as CD, card holder, effector, mixer, compression limiter and equalizer are connected with one set of power supply, and the strong signal power amplifier is connected with another set of power supply, which can avoid AC noise interference of power source in conduction mode;
3、把两个&濒诲辩耻辞;地&谤诲辩耻辞;电位不同的音响设备间的信号地线分离，避免设备直接连通或形成地线环路。如平衡式连接外屏蔽线只在一端接地，或两端都不接地等；
3. Separate the signal ground wires between two audio devices with different "ground" potentials to avoid direct connection or formation of ground loop. For example, the balanced connection of the external shielding wire is only grounded at one end, or both ends are not grounded, etc;
4、连接干净的电源供电供电电源设计时，应设计单独电源变压器；无条件时可使用独立一组电源供电，与空调、灯光等设备分开供电；或采用隔离电源变压器等，这些都是行之有效的措施；
4. When designing a clean power supply, a separate power transformer should be designed; When there are no conditions, an independent set of power sources can be used for power supply, separated from air conditioning, lighting and other equipment; Or using isolated power transformers, etc., these are effective measures;
5、使用悬浮接地就是该点电位与地相同，为零电位。但是该点又不是直接和地相连。是音响设备电路对地电位为零的点。这个&濒诲辩耻辞;地&谤诲辩耻辞;与实际的地之间存在阻抗，而且是高阻抗，这样可以克服共模干扰；
5. The use of floating grounding means that the potential at this point is the same as the ground, which is zero potential. But this point is not directly connected to the ground. It is the point where the ground potential of the audio equipment circuit is zero. There is impedance between this' ground 'and the actual ground, and it is high impedance, which can overcome common mode interference;
6、两音响设备间不能有直流的电路连接；
6. There should be no direct current circuit connection between the two audio devices;
7、不同系统连接须采用平衡式隔离变压器连接音响系统与电视转播车音频系统的连接；系统与大型电子显示屏的连接；或与电子计算机的连接等，一般须用平衡式隔离变压器连接。不同系统共地容易引起交流噪声的干扰。
7. The balanced isolation transformer must be used for the connection of different systems to connect the audio system with the audio system of the television relay vehicle; Connection between the system and large electronic display screens; Or the connection with the electronic computer, etc., must generally be connected with a balanced isolation transformer. Different systems sharing the same ground are most likely to cause interference from AC noise.
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