The normality of the stage sound and light directly affects the performance of the performance, so both professional audio equipment and stage lighting equipment need to be maintained and maintained, and the faulty lines and equipment should be repaired in time to avoid accidents. appear. For bars, KTV, dance halls and other places, in the process of loading, there will often be such a situation: the sound engineer has worked hard for a long time, but the final sound effect is always unsatisfactory, then how to check the sound stage lighting Is the equipment properly? The following small series will share with you some tips on the sound equipment design process to make the persuasive effect better, super practical!
1. Stage sound lighting equipment housing has the phenomenon of charging the inspection sequence The order of the equipment power inspection is first to check whether the power supply line is damaged, and secondly, whether the line phase is correct, and secondly, whether the equipment grounding and voltage are correct.
2, the professional sound system in the case of insufficient volume check order Under normal circumstances, if there is insufficient volume in the professional audio equipment, it is necessary to check the line level setting of the amplifier and speaker in time, and then understand whether the speaker cable connection is correct. Firm, and whether the phase of the amplifier and the speaker are the same, whether the amplitude of the equalizer is in the normal range, and whether the starting level of the compressor is appropriate.
3. How to check the resonance and feedback in the sound field If there is resonance and sound feedback in the professional audio equipment, first check whether the room frequency response has a peak, and also check whether the room structure and decoration are reasonable, preferably To check if the crossover point and bass gain are reasonable, the room reverberation time is too long.
4. Inspection method for generating interference noise If there is noise in professional audio equipment, first check the dimming interference, whether the audio and lighting power supply is disconnected, and then check whether the lighting power supply and control circuit are away from the audio signal line. Recently, there have been cases where the silicon box is too close to the audio device. Under normal circumstances, there is noise in the speaker system, which is usually caused by the unreasonable transmission of the signal. Therefore, when there is a problem with the shielding of the signal line, or the grounding of the signal is not correct, noise interference is likely to occur. Happening.
5, the light out of control inspection method Light out of control First of all, it is necessary to check the controller's program whether there is any problem, the address code of the lamp has no problem, the connection of the control line is correct, there is also need to check whether the control line shield is not affected Bad interference, whether the limit adjustment of the lamp is appropriate.
6, computer light bulb damage check in the stage sound is most likely to appear is the light bulb is easy to break, so there is a problem, it is necessary to check whether the installed light bulb is reliable, whether it is contaminated with dust and moisture, there is to check the light bulb The heat dissipation is not in 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. Checking the video image in the audio and video system If the video image is not normal in the professional audio equipment, first check whether the program format is in the correct range, whether the device casing is charged or not, and then To check if the signal shielding is susceptible to high level interference, it is best to check if the projection tube is in the normal range, and there is no problem with the performance of the liquid crystal projection bulb.
8. The sound of the wireless microphone in the professional audio equipment is unstable. If the wireless microphone is unstable, the first reason to check the sound instability is due to the high frequency interference source in the system, or the antenna connection error, reception. Machine fine-tuning, microphone battery power and other connected devices have problems.
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