How to solve the problem of stage lighting and sound equipment

Release time:

2019-08-15

Summary： Stage lighting and sound equipment affect the performance of the stage. Therefore, if there is a problem with the stage lighting and sound equipment, it is very troublesome and must be checked regularly. Of course, don't be afraid if something goes wrong, because there is Shijiazhuang professional audio. follow xiaobian to see it!

Stage lighting and sound equipment affect the performance of the stage. Therefore, if there is a problem with the stage lighting and sound equipment, it is very troublesome and must be checked regularly. Of course, don't be afraid if something goes wrong, because there is Shijiazhuang professional audio. follow xiaobian to see it!

1, stage sound lighting equipment shell has charged phenomenon of inspection sequence

The sequence of live inspection of the equipment shell is to check whether the power supply line is damaged, followed by whether the line phase is correct, and whether the equipment grounding and voltage are correct.

2. Check sequence of insufficient volume in professional audio system

In general, if the volume is insufficient in professional audio equipment, it is necessary to check whether the line level settings of the power amplifier and the sound box are correct in time. Secondly, it is necessary to know whether the sound box cable is firmly connected, whether the phase of the power amplifier and the sound box is consistent, whether the attenuation amplitude of the equalizer is within the normal range, and whether the starting control level of the voltage limiter is appropriate.

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

If resonance and acoustic feedback occur in professional audio equipment, it is necessary to check whether the room frequency response has a peak point, and whether the room structure and decoration are reasonable. It is better to check whether the frequency division point and bass gain are reasonable and whether the room reverberation time is too long.

4. Inspection method of interference noise

If there is noise in professional audio equipment, it is necessary to check the dimming interference, whether the audio and light power supply is disconnected, and then check whether the light photoelectric source and control circuit are too close to the audio signal line, and whether the silicon box is too close to the audio equipment.
In general, there is noise in the speaker system, which is usually caused by unreasonable signal transmission. Therefore, when the shielding of the signal line is problematic or the grounding of the signal is incorrect, noise interference is prone to occur.

5, the light out of control inspection method

If the light is out of control, it is necessary to check whether there is any problem with the program of the controller, whether there is any problem with the address code of the lamp, whether the connection of the control line is correct, whether the shielding of the control line is disturbed by bad interference, whether the limit adjustment of the lamp is appropriate, etc.

6. Inspection for damage of computer lamp bulb

The most common thing in stage sound and lighting is that the bulb is easy to break, so if there is a problem, it is necessary to check whether the installed bulb is firm, whether it is contaminated with dust and moisture, and whether the heat dissipation of the bulb is within the normal range. It is best to check whether the voltage is within the normal range and whether the power switch is used too frequently.

7. Inspection of video images in audio and video systems

If the video image is abnormal in professional audio equipment, it is necessary to check whether the program system is in the correct range and whether the equipment shell is charged. Secondly, it is necessary to check whether the signal shielding is susceptible to high-level interference. It is best to check whether the projection tube is within the normal range and whether there is any problem with the performance of the liquid crystal projection bulb.

8. The sound of wireless microphones in professional audio equipment is unstable

If the wireless microphone is unstable, it is necessary to check the cause of the unstable sound, whether it is caused by high-frequency interference sources in the system, or by problems with connected equipment such as antenna connection errors, receiver fine-tuning, microphone battery power, etc.

These are the problems that will occur in the stage lighting and sound equipment. Shijiazhuang professional sound has helped everyone find a solution.

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Shijiazhuang ktv audio and professional amplifier how reasonable allocation?