在音响扩声系统施工中常会因为采用的线材不合适，使用的安装方式不合理，接口焊接不规范，接头使用不标准等等原因引起的系统故障，同时不规范的施工还会造成维护和维修不便。那么音响扩声系统施工中的注意事项有什么呢？
报告厅音响厂家为您讲解。
In the construction of the sound reinforcement system, system failures are often caused by improper wires, unreasonable installation methods, nonstandard interface welding, nonstandard joint use, etc. at the same time, nonstandard construction will also cause inconvenience in maintenance and repair. What are the precautions in the construction of the sound reinforcement system? The audio manufacturer in the lecture hall will explain it to you.
扩声系统对施工工艺的要求比较高，因为在实际音频信号很容易受到外界干扰，例如音频信号在设备之间传输时很容易受到电磁干扰、强电干扰和信号与信号之间的相互干扰等等。为避免音频信号受到外界干扰通常采用以下抗干扰手段。
The sound reinforcement system has high requirements on the construction process, because the actual audio signal is easily affected by external interference, such as electromagnetic interference, strong current interference and mutual interference between signals when the audio signal is transmitted between equipment. In order to avoid external interference to the audio signal, the following anti-interference measures are usually adopted.
防止电源信号干扰。由于电源采用50-60贬锄的频率进行传输，而这段频率人耳是可以明显辨别的，因此由于设备接地不良、信号接地不良和信号线屏蔽不良等原因，经常会在音箱中听到低频交流声，此类噪声较容易辨认。此类干扰信号多是由于电源音频，因此在实际工程中保证系统具有&濒诲辩耻辞;干净&谤诲辩耻辞;的电源尤为重要，同时需要使用叁项电源中的同一个相位的电源，避免电源相位差引起的电源噪声。
Prevent power signal interference. Since the power supply is transmitted at a frequency of 50-60Hz, which can be clearly identified by human ears, low-frequency AC noise is often heard in the speaker due to poor equipment grounding, poor signal grounding and poor signal line shielding, which is easy to identify. Most of such interference signals are due to the audio frequency of the power supply. Therefore, it is particularly important to ensure that the system has a "clean" power supply in the actual project. At the same time, the power supply with the same phase among the three power supplies needs to be used to avoid the power supply noise caused by the phase difference of the power supply.
防止电磁烦扰。此类干扰信号经常影响系统的信号传输，为避免此类干扰要注意信号线的抗干扰能力，要采用平衡式传输方式和两芯屏蔽音频专用电缆进行音频进行的传输。
Prevent electromagnetic interference. Such interference signals often affect the signal transmission of the system. In order to avoid such interference, attention should be paid to the anti-interference ability of the signal line. Balanced transmission mode and two core shielded audio special cable should be used for audio transmission.
在同一个系统中，信号与信号之间的相互干扰较少。但也会出现系统串音严重的现象，即是某个通道已经处于静音状态，而系统仍然存在声音。这时就需要严格检查线路连接方式。串音严重的问题通常是施工人员将信号线错连接在某个设备的屏蔽上而引起的。此类故障通常需要检查设备连接的做法是否标准。
In the same system, the mutual interference between signals is less. However, serious system crosstalk may also occur, that is, a certain channel has been in the mute state, but the system still has sound. At this time, it is necessary to strictly check the line connection mode. The serious problem of crosstalk is usually caused by the construction personnel connecting the signal line to the shield of some equipment by mistake. Such failures usually require checking whether the equipment connection practices are standard.
接头焊接的高标准完成。这类要求可以说是扩声系统稳定工作和避免各类型干扰的基础方法。音响系统施工实际上可以从另一个角度认为是在将各个设备进行连接的工作。在这个连接过程中其实只有连接线缆和各个连接接头。只要线缆使用符合要求，接头焊接工艺达到技术要求可以避免绝大多数问题。
High standard completion of joint welding. This kind of requirement can be said to be the basic method for the sound reinforcement system to work stably and avoid various types of interference. The construction of the sound system can actually be regarded as the work of connecting various equipment from another perspective. In this connection process, there are only connecting cables and various connecting connectors. As long as the use of cables meets the requirements, the joint welding process can meet the technical requirements to avoid most problems.
此外要布线要保证整洁，线路平行。线槽和机柜内线路要使用扎线带和专用工具将电缆扎其并在所有电缆接头处做详细线标，线路连接方式、接口和线标也要有相应图纸相对应，并有记录可以查询。更多注意事项就来我们网站
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In addition, the wiring shall be clean and parallel. Cable ties and special tools shall be used to tie the cables in the trunking and cabinet, and detailed line marks shall be made at all cable joints. The line connection mode, interface and line mark shall also be corresponding to corresponding drawings, and records shall be available for inquiry. For more information, please visit our website Consult and understand!
