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会议音响在使用过程中要避免受到哪些影响?
更新时间:2022-09-22
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会议音响在使用过程中要避免受到哪些影响?音频信号在传输过程中造成的干扰多种多样,常见的有电源干扰,设备间干扰和光干扰。下面山东会议室音响厂家为您解说。
What impacts should be avoided during the use of conference audio? There are many kinds of interference caused by audio signal during transmission, including power interference, interference between devices and optical interference. Next, Shandong conference room audio manufacturer will explain to you.
1.电源干扰。电源接地不良,设备之间的接地接触不良以及设备之间的阻抗失配,未经“纯化”处理的设备电源,音频电缆和交流电缆铺设在同一根管子,同一沟槽或同一桥中,都会造成混乱干扰到音频信号,形成低频交流“嗡嗡”声。
1. Power interference. Poor grounding of power supply, poor grounding contact between equipment and impedance mismatch between equipment, equipment power supply without "purification" treatment, audio cable and AC cable laid in the same pipe, the same trench or the same bridge will cause confusion and interference to audio signal, forming low-frequency AC "buzz" sound.
2.设备之间的干扰。“啸叫”是由扬声器和麦克风之间的正反馈引起的。主要原因是麦克风离扬声器太近或麦克风指向扬声器。声波延迟会产生“空声”。
2. Interference between equipment. The "howling" is caused by the positive feedback between the speaker and the microphone. The main reason is that the microphone is too close to the speaker or the microphone points to the speaker. The acoustic delay will produce "empty sound".
山东会议室音响
如果麦克风同时拾取声源信号和放大后的信号,或者两个麦克风与声源的距离不同,则拾取来自同一声音源的信号,或者一个麦克风拾取声音放大后的另一个麦克风的信号恢复将有相应的距离差并造成延迟。当这些信号叠加时,某些频率分量会相互抵消,从而形成“空声”。
If the microphone picks up the sound source signal and the amplified signal at the same time, or if the distance between two microphones and the sound source is different, pick up the signal from the same sound source, or if one microphone picks up the sound and amplifies the signal of another microphone, there will be a corresponding distance difference and delay. When these signals are superimposed, some frequency components will cancel each other, thus forming "empty sound".
3.光线干扰。如果将镇流器用于会场内间歇性激活的照明灯,则在激发灯时会产生高频辐射,并且会通过麦克风及其导线串入,并发出“咔嗒声”。声音“吱吱”的声音;另外,来自外部的高频电磁干扰也会引起干扰。
3. Light interference. If the ballast is used for intermittently activated lamps in the venue, high frequency radiation will be generated when the lamp is excited, and it will be connected through the microphone and its wires, and a "click" will be generated. The sound of "squeaking"; In addition, high-frequency electromagnetic interference from outside will also cause interference.
电视会议的声音恢复应基于声学的理论知识,根据实际情况的不同,灵活地调节混音器和均衡器,对声音进行处理和美化,弥补声场的缺陷,创造理想的声学效果。
The sound recovery of video conference should be based on the theoretical knowledge of acoustics. According to the actual situation, the mixer and equalizer should be flexibly adjusted to process and beautify the sound, make up the defects of the sound field, and create ideal acoustic effects.
适当调整压缩量遇到突然的大峰值信号时,限制器不会过载且不会失真,同时,有必要长时间避免压缩限制器处于压缩状态,以使声音连接顺畅而圆滑。
Properly adjust the compression amount. When encountering a sudden high peak signal, the limiter will not be overloaded and distorted. At the same time, it is necessary to avoid the compression limiter from being in the compression state for a long time to make the sound connection smooth and smooth.
会议音响在使用过程中要避免受到哪些影响?以上就是问题的相关解答了,您对此有什么不了解的地方,欢迎随时来我们网站https://www.wenguangzhineng.com进行咨询!
What impacts should be avoided during the use of conference audio? The above is the answer to the question. If you don't know anything about it, please come to our website at any time https://www.wenguangzhineng.com Consult!

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