音响扩声系统相对于视频显示系统来说要更加的复杂一些，因为不同的人对于感官上的认知是难于达成一致。另外音频信号经过传输、处理、后经过扬声器扩声之后，产物没有好的品质声音效果难以保证，也有诸多现场因素的影响。在会议室扩声系统中，针对会议室去设计和选择音响系统，有如下几方面需要注意：
The sound reinforcement system is more complex than the video display system, because it is difficult for different people to reach an agreement on sensory cognition. In addition, after the audio signal is transmitted, processed and amplified by speakers, it is difficult to guarantee the sound effect without good quality, and there are also many on-site factors. In the conference room sound reinforcement system, the following aspects should be paid attention to when designing and selecting the sound system for the conference room:
会议室的空间布局，如长宽高尺寸；会议室类型又可以分为圆形会议室、长方形会议室、其他不规则形状会议室等等。
Space layout of the meeting room, such as length, width and height; Conference rooms can be divided into circular conference rooms, rectangular conference rooms, other irregular shape conference rooms and so on.
音响系统设计，是有相应的标准的，只是现实情况中有些会议室在建设之初并没有严格按照建筑声学的要求去做装修装饰设计，这直接导致了后续在设计音响系统时需要花费大量的精力与技术力量去反复的调试，后甚还是达不到预期。
The state has corresponding standards for sound system design, but in reality, some conference rooms did not do decoration design in strict accordance with the requirements of architectural acoustics at the beginning of construction, which directly led to the subsequent need to spend a lot of energy and technical strength to repeatedly debug the sound system design, and even failed to meet the expectations.
会议室的装饰情况，是否大部分区域采用了吸音材料？
The decoration of the conference room. Are sound-absorbing materials used in most areas?
这跟上面描述的差不多，扩声效果的优劣有两大方面音响：一是建声条件是否理想，二是电声设计是否合理。其中建声条件是基础，需要去深入亲身感受。
This is similar to the above description. The sound reinforcement effect has two aspects: one is whether the sound conditions are ideal, and the other is whether the electroacoustic design is reasonable. The sound building condition is the foundation, which needs to be deeply experienced.
整个音频系统中源头的拾音器设备的选择，有鹅颈话筒、数字会议话筒、无线手持话筒、界面话筒等等，不建议用界面或者全向类型的话筒，后续非常难调试，且增益不敢开的很大，容易出现啸叫。这是在部署扬声器的时候，位置的选择需要考究一下，尽量与话筒保持一定的距离。
The source pickup equipment in the whole audio system includes gooseneck microphone, digital conference microphone, wireless handheld microphone, interface microphone, etc. it is not recommended to use interface or omni-directional microphone. It is very difficult to debug later, and the gain is too large to open, which is prone to howling. When deploying loudspeakers, the position should be carefully selected to keep a certain distance from the microphone.
厂家认为音频的处理，传统的多采用模拟调音台，现在更多的选用数字音频处理器（若视频会议室的话选配带础贰颁回声抑制功能的数字处理器），选用数字音频处理器的话需要注意其操作问题（因为其设备本身没有像调音台一样的推子或者旋钮），可以选择有适配控制面板的，也可以接入智能控制系统通过笔础顿控制。
Shandong conference room audio manufacturers believe that the traditional audio processing method is to use analog mixer, and now more digital audio processors are used (if the video conference room is equipped with a digital processor with AEC echo suppression function). If the digital audio processor is selected, its operation needs to be paid attention to (because the equipment itself does not have a pusher or knob like the mixer). It can be selected with an adaptive control panel, It can also be connected to the intelligent control system and controlled through pad.
然后是功放与音箱的选择，会议室使用频率较高，语言扩声为主，且会议室层高一般不高，用户对于空间的利用率要求高。目前线性音柱音箱不管在美观方面、安装方面还是效果方面都可以保证会议室的语言扩声使用，但在选择的时候也关注一下该音柱音箱的低频部分，大部分音柱音箱低频部分不是很够。同时也基于场地因素合理配置主音箱、补声音箱等。如主音箱采用音柱音箱、补声音箱采用天花音箱。
Then there is the choice of power amplifier and speaker. The conference room has a high frequency of use, mainly language sound reinforcement, and the floor height of the conference room is generally not high. Users have high requirements for space utilization. At present, the linear sound column speakers can ensure the use of language reinforcement in the conference room in terms of aesthetics, installation and effect. However, when selecting, pay attention to the low-frequency part of the sound column speakers. Most of the low-frequency parts of the sound column speakers are not enough. At the same time, the main speakers and supplementary speakers are reasonably configured based on the site factors. For example, the main sound box adopts the sound column sound box, and the supplementary sound box adopts the ceiling sound box.
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