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音响系统的电平调试步骤
更新时间:2022-12-20
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音响系统通电后还需进一步细致的调整、调试,这些调试工作一般要借助一些专用的仪器、设备才能很好地完成。下面山东音响厂家来讲讲音响系统的电平调试步骤。
After the audio system is powered on, it needs to be further adjusted and debugged. These debugging work can be well completed with the help of some special instruments and equipment. Next, Shandong professional audio manufacturers will talk about the level debugging steps of the audio system.
1.线路检
1. Line inspection
按照系统线路图纸,仔细检查线路连接,确认线路均能正常运作。
According to the system circuit drawing, carefully check the circuit connection to ensure that the circuit can operate normally.
2.设备初始状态的设置
2. Setting of initial state of equipment
将功放输入设置为小,将所有周边设备的输入输出旋钮设置为0分贝位置或中间位置。按照从前级到后级的顺序通电(先不开功放),检查所有设备通电正常后,给功放通电。
Set the input of the power amplifier to small, and set the input/output knobs of all peripheral devices to 0dB position or middle position. Power on the power amplifier in the order from the previous stage to the next stage (do not turn on the power amplifier first), and power on the power amplifier after checking that all equipment are powered on normally.
3.初步检查系统状态
3. Preliminary check of system status
此时适当开大功放的增益控制,播放一张熟悉的颁顿,调整调音台输入电平到基本正常位置。慢慢推起调音台推子,听听音箱发出来的声音是否正常,是否失真,如果不正常立即关机检查。
At this time, properly turn on the gain control of the power amplifier, play a familiar CD, and adjust the input level of the mixer to the basic normal position. Slowly push up the mixer knob, listen to whether the sound from the speaker is normal and distorted, and immediately shut down and check if it is abnormal.
4.音箱及系统极性检测
4. Speaker and system polarity detection
系统基本正常后,打开所有设备电源,功放电平设置在大,拉下调音台输出推子,将相位仪发生器接入调音台输入通道,打开相位仪电源调整输出增益和调音台输入增益到调音台指示表为0分贝。
After the system is basically normal, turn on the power supply of all equipment, set the power amplifier level at large, pull down the output pusher of the mixer, connect the phase meter generator to the input channel of the mixer, turn on the power supply of the phase meter to adjust the output gain and the input gain of the mixer to 0 dB on the mixer indicator.
5.相位调整
5. Phase adjustment
如果同时使用超低频和全频的组合,由于分频系统的存在以及安装位置的原因,可能会有交叉频率干扰或延时时间不同引起的相位问题,所以需要进行相位调整。粉红噪声生器接到调音台输入通道,调整电平到正常位置,相位仪测试话筒放在场地中间,与音箱成等边叁角形的位置。
If the combination of ultra-low frequency and full frequency is used at the same time, there may be cross frequency interference or phase problems caused by different delay times due to the existence of the frequency division system and the installation location, so phase adjustment is required. The pink noise generator is connected to the input channel of the sound mixing console, and the level is adjusted to the normal position. The phase meter test microphone is placed in the middle of the field, forming an equilateral triangle with the speaker.
山东音响
6.频率均衡
6. Frequency equalization
在做完以上调节后,接下来即需要调节系统的频率响应曲线。将频谱仪的测试话筒放在坐席区域内的某一位置,播放粉红噪声声源,观看频谱仪显示,对有缺陷的地方,利用均衡器进行修正。将测试话筒放到不同的地方,多变化几个位置,反复调整均衡使各个区域的频响曲线都尽可能平直。
After the above adjustment, the frequency response curve of the system needs to be adjusted. Put the test microphone of the spectrometer at a certain position in the seating area, play the pink noise source, watch the spectrometer display, and use the equalizer to correct the defects. Put the test microphone in different places, change several positions, and adjust the balance repeatedly to make the frequency response curve of each area as straight as possible.
7.调试动态控制设备
7. Commissioning of dynamic control equipment
一般动态调节设备就是压限器,压限器如果是链式连接串连在系统中,一般都是作为保护系统使用,所以主要是利用压限器的限幅功能。根据个人需求,这里只描述其中一种压限器设置方法,可将压限器设置为直通(叠驰笔础厂厂),输入输出增益设置为0分贝,压缩比设置为"无穷大",然后从调音台送出粉红噪声信号,逐渐推大,观察功放的输入电平指示灯,当削波指示灯(颁尝滨笔)点亮后。
The general dynamic regulating equipment is the pressure limiter. If the pressure limiter is chain connected in series in the system, it is generally used as a protection system, so it mainly uses the amplitude limiting function of the pressure limiter. According to personal requirements, only one of the pressure limiter setting methods is described here. The pressure limiter can be set to BYPASS, the input/output gain is set to 0 decibels, and the compression ratio is set to "infinity". Then the pink noise signal is sent from the mixer and gradually pushed up. Observe the input level indicator of the power amplifier when the clipping indicator (CLIP) is lit.
音响系统的电平调试步骤相关内容就讲解到这里了,您对此有想法或者需求可以随时来我们网站进行咨询!
This is the end of the audio system level debugging procedure. If you have any ideas or needs, you can come to our website at any time Consult!

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