Analysis of difficult problems in lighting and sound engineering

As a complex and multi-technical project, various problems may occur during the audio engineering process. In addition, there are many types and quantities of equipment in the audio and lighting system, and the technical requirements of the system are also very different, so various problems occur. It is inevitable, and usually encounter some difficult problems. According to the characteristics of audio engineering, the design of the project plays a major role in the quality and progress of the project, so as long as the design and related specifications are carefully followed during construction, generally no difficult problems will be encountered during the construction process, or It is said that these difficult problems will not be reflected in the construction. Most of the time, the difficult problems of the project occur in the debugging stage, and even appear after a period of use.

Since it is a difficult problem, it is very easy to solve it. Often it takes a long time to check the problem, but the problem still exists; A person engaged in sound engineering technology will have different degrees of experience. But although these difficult problems are expressed in various forms, as long as there is no error in the design, it can be said that there is only one root cause of the occurrence, that is: caused by omissions in the construction process. Therefore, even if it is a difficult problem, it can still be solved.

The following are some common typical difficult problems, based on the author's actual engineering experience, and analyze them in the form of block diagrams. 1. The shell of the equipment is charged. Since all equipment in audio engineering must use electricity, you may first encounter the problem of electrification of some equipment shells during debugging. Although the live shell does not necessarily affect the use of the equipment, it will endanger the safety of users. , must be solved thoroughly. 2. The volume of the sound system is insufficient. During project debugging, it is often encountered that the volume of the sound system is always low and cannot meet the requirements of the design sound pressure level. This indicates that there is a problem with the installation and setting of the equipment. 3. Resonance occurs in the sound field Although serious consideration has been given to design and construction, there are unavoidably incomplete and unforeseen problems, and the occurrence of these problems will definitely affect normal use and should be eliminated. Search sequence 4 Interfering noise sound Interfering noises are often encountered in projects, and the causes are also different. It is usually very troublesome to solve, but as long as careful analysis is found from the construction of the system to find the cause and analyze step by step, it can still be solved. 5 Lighting out of control In audio engineering, sometimes the lighting movement is uncoordinated, not controlled by the controller and occasionally wrong actions, etc. Although sometimes a slight loss of control will not have a big impact, if the problem cannot be solved Solve, the fault may be further expanded, and at the same time, the misoperation of the lighting is intolerable in the project used for the performance. 6. The video image is not normal. , and then for multiple display devices, there are more links in the middle, which may cause poor video image quality due to different reasons and affect the viewing effect, so it should be dealt with. 7. The sound of wireless microphones is unstable. Now most audio projects are equipped with Wireless microphones, but due to improper installation and debugging, a considerable number of them are not in good condition, especially at the performance site, the working condition of wireless microphones will directly affect the quality of the performance, so this is a problem that cannot be ignored.