北京市音响设备厂

舞台灯光音响设备问题解决方法

The problem solving method of stage lighting and sound equipment

1、舞台音响灯光设备外壳有带电现象的检查顺序

1. The inspection order of live audio and lighting equipment shell is electrified.

设备外壳带电检查的顺序首先是要检查供电线路是否出现损坏的情况，其次是线路相位是否正确，其次还要了解设备接地和电压是否正确。

The order of electrification inspection of the equipment shell is first to check whether the power line is damaged, the second is whether the line phase is correct, and the second is to know whether the equipment is grounded and the voltage is correct.

2、专业音响系统中音量不足的情况检查顺序

2, check the sequence of insufficient volume in professional audio system.

一般情况下如果专业音响设备中出现音量不足的情况，就要及时的检查功放和音箱的线路电平设置是否正确，其次还要了解音箱线连接是否牢固，还有就是功放与音箱的相位是否一致，均衡器衰减幅度是否在正常的范围呢，压限河北立体车库 消防报警器塑料配件 电缆接地箱 电缆保护接地箱 塑料土工格栅 消弧线圈装置 器的起控电平是否恰当。

In general, if the volume is insufficient in the professional sound equipment, it is necessary to check whether the circuit level of the amplifier and the sound box is correct in a timely manner. Secondly, it is necessary to know whether the connection of the sound box line is firm, and whether the phase of the amplifier and the sound box is consistent, and whether the attenuation of the equalizer is in the normal range, and the pressure is in the normal range. Whether the control level of the limit device is appropriate.

3、怎么检查声场中发生共振和反馈

3. How to check the resonance and feedback in the sound field

如果在专业音响设备中出现共振和声反馈的情况，首先要检查房间频响是否有峰点，还有就是要检查房间结构和装饰是否合理，最好还要检查分频点和低音增益是否合理，房间混响时间是否出现过长的情况。

If there is resonance and sound feedback in the professional sound equipment, we should first check whether there is a peak in the room frequency response, and to check whether the room structure and the decoration are reasonable, it is better to check whether the frequency division points and the bass gain are reasonable, and whether the room reverberation time is too long.