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舞台音响可能会遇到一些什么问题
更新时间:2022-08-11
文章来源:https://www.wenguangzhineng.com/
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表演舞台是音响使用量比较大的场合之一,但是如果舞台音响出了问题会直接导致演出无法顺利进行。因此,我们必须要知道舞台音响可能会遇到一些什么样的问题,下面山东音响厂家为您讲解。
The performance stage is one of the occasions with a large amount of audio. However, if there is a problem with the stage audio, it will directly lead to the failure of the performance. Therefore, we must know what problems the stage audio may encounter. The Shandong audio manufacturers will explain to you.
1 线路要按标准连接
(1) the line shall be connected according to the standard
常见系统交流干扰声大就是线路连接工艺没有做好造成的,还有系统中有平衡转不平衡及不平衡转平衡接法的务必要按标准连接,另外不要用劣质接插件。
It is common that the loud AC interference of the system is caused by the failure of the line connection process. In addition, if there is a balanced to unbalanced and unbalanced to balanced connection method in the system, it must be connected according to the standard. In addition, do not use inferior connectors.
2 调整压限器问题
(2) adjustment of pressure limiter
常见摆设根本不起作用和作用过度起反作用。前者可以将就用,后者则会带来严重影响系统的动态,表现为声音发不出来,明显表现是伴奏声越强人声就自然减弱使演唱者无所适从。
Common furnishings do not work at all and overreact. The former can make do with it, while the latter will have a serious impact on the dynamics of the system, which is manifested by the failure of the voice. The obvious performance is that the stronger the accompaniment sound, the voice will naturally weaken, making the singer at a loss.
3 信号分配的问题
(3) signal distribution
在声场内有几组扬声器的情况下,常使用一台均衡器将信号分配给多台功放推动音箱。但同时也可能是不同品牌型号的功放和音箱混在一起使用,这样分配信号带来很多问题,阻抗是否匹配,电平分配是否均衡,音箱所获得功率是否正常,以及用一台均衡很难调整好声场和音箱的频率特性。
When there are several groups of speakers in the sound field, an equalizer is often used to distribute signals to multiple power amplifiers to drive the speakers. But at the same time, it may also be that power amplifiers of different brands and models are used together with speakers. This distribution of signals will bring many problems, such as whether the impedance is matched, whether the level distribution is balanced, whether the power obtained by the speakers is normal, and it is difficult to adjust the sound field and the frequency characteristics of the speakers with one equalizer.
4 效果回路处理
(4) effect loop treatment
应该取推子的后置信号,避免效果不受控引起话筒啸叫,返回有条件占用一路通道,这样调试更方便。
The post signal of the fader should be taken to avoid the microphone howling caused by the uncontrolled effect, and the return conditionally occupies one channel, so that the debugging is more convenient.
5 处理低音信号
5) processing bass signal
一是不做电子分频用全频信号直接给功放推动音箱,这样有声音也不至于烧坏单元,但低单元发全频声音可想而知。如从系统中不恰当位置取得信号也会给现场控制带来不必要的麻烦。二是不知从系统何处提取低音信号做处理。
First, the full frequency signal is not used for electronic frequency division to directly drive the speaker box for the power amplifier, so that the unit will not be burnt if there is sound, but it is conceivable that the low unit will emit full frequency sound. If the signal is obtained from an inappropriate position in the system, it will also bring unnecessary trouble to the field control. Second, I don't know where to extract the bass signal from the system for processing.
山东音响
6 系统电平问题
(6) system level problem
一是功放灵敏度控制开关打开不足,二是系统没有做零电平调整。有时调音台通道推一点点输出已很大,这种情况会影响系统的动态和失真度。
One is that the sensitivity control switch of the power amplifier is not opened enough; the other is that the system has not made zero level adjustment. Sometimes the output of the mixer channel is very large by pushing a little, which will affect the dynamics and distortion of the system.
7 音频总是出现哼声大的问题
(7) the audio always has the problem of loud hum
很多时候专业舞台音响设备用着就会出现很多问题,就比如出现哼声大的现象。那么哼声其实是由于接地不良或不对,系统的设备不在同一路电网上,地电位严重相差引起的,而连接线的屏蔽层脱焊或屏蔽线接得不对而形成地电流回路,所以才会引起哼声大的原因。针对这种原因引起的非常容易判断,只要将两个系统之间的连接信号线插头从一个系统拔掉,哼声就会消失不见的。
Many times, there will be many problems when professional stage audio equipment is used, such as loud hum. In fact, the hum is caused by poor or incorrect grounding, the equipment of the system is not on the same power grid, and the ground potential is seriously different, and the shielding layer of the connecting line is desoldered or the shielding wire is incorrectly connected to form the ground current loop, so the cause of the loud hum is caused. For this reason, it is very easy to judge. As long as the connecting signal line plug between the two systems is unplugged from one system, the hum will disappear.
8 话筒加入混响的问题
(8) reverberation of microphone
话筒加入混响后,声音混:混响声的低频过多;在调音台上对混响的低频进行适当衰减。
After the microphone joins the reverberation, the sound is mixed: the low frequency of the reverberation sound is too much; Appropriately attenuate the low frequency of reverberation on the mixer.
9 音响系统声音小,听不到声音
9. The sound system is low and cannot be heard
很多时候,你是否会遇到专业舞台音响设备出现声音小的现象,不管是音量调大调小都一样。其实这是因为音响设备连接线短路,插头、插座配合不好,连线虚焊等,在判定连接线没有问题后再怀疑设备,检查是那一台设备有了故障,然后再更换设备。如声音小还伴随声场严重不均匀则应考虑扬声器的相位是否接错。因为连接线的对错,关系到音量的传输以及大小等等的因素。
Many times, you will encounter the phenomenon that professional stage audio equipment has low sound, no matter whether the volume is turned up or down. In fact, this is because the connecting wires of the audio equipment are short circuited, the plugs and sockets are not well matched, and the wires are poorly welded. After determining that the connecting wires are OK, suspect the equipment, check which equipment is faulty, and then replace the equipment. If the sound is small and the sound field is seriously uneven, it shall be considered whether the phase of the speaker is connected incorrectly. Because the right or wrong connection line is related to the transmission and size of the volume.
舞台音响的好与坏关系着一场演出的效果,所以很多时候需要正确去使用它们。那么对于专业舞台音响设备,遇到故障问题是必不可免的,要并及时采取有效的手段来防止或解决这些问题的出现。更多信息获取就来我们网站https://www.wenguangzhineng.com吧。
The sound quality of the stage is related to the effect of a performance, so it is necessary to use them correctly. So for professional stage audio equipment, it is inevitable to encounter fault problems, and effective measures should be taken in time to prevent or solve these problems. For more information, please visit our website https://www.wenguangzhineng.com Right.

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