1. Characteristics of professional sound engineering

Professional audio engineering is an emerging industry that develops gradually with the development of society and the progress of people's material and cultural life from time to time, thus constituting the request for artistic performance, entertainment and leisure from time to time. Generally, the so-called professional sound engineering is a system engineering including professional stage sound and light system, applicable sound and light video system, commercial broadcast and conference system, etc. In terms of engineering technology, it is a comprehensive engineering technology that integrates construction, electronics and electrician technology, and contains acoustics, optics, audio, video and other theories. It requests the engineering business according to the user different practice demand, the earnest discussion, integrates the designer's design thought comprehensively, the careful design and the construction; At the same time but also get the building decoration, power supply departments with close ability to complete. It can be seen that the significance of professional audio engineering is very important, and the importance of engineering technology is also very prominent.

A sound, light, like a good project, must be a strong technical strength, management standards of the engineering company serious efforts; On the contrary, a project without strict, standard, scientific design and construction, its system effect and equipment stability is incredible.

In the professional audio technology of engineering to build a good atmosphere, this paper start from the Angle of applied engineering, practised in accordance with the practical engineering application, in such aspects as design, type selection, construction to stop the detailed explanation, purpose is to hope that through a series of technology introduced, for the technical personnel engaged in professional audio engineering work summarized a set of standard, reasonable and scientific design and construction technology, at the same time for studying engineering people to provide a great applicable value of materials. In addition, we also separated a large number of professional audio engineering design and construction examples and experience, trying to make everyone in the study to get a more intuitive understanding, to prevent some similar mistakes. We hope that from time to time in the practice of engineering summary, can gain and progress in engineering technology.

2. Technical terms and relevant specifications for professional sound engineering

To learn professional audio engineering technology, it is necessary to first understand relevant technical terms and some relevant countries and industry norms. As long as such professional design and construction ability can suit the case, the quality of engineering talent can be fully guaranteed. Can tell further, all and the professional standard that the project concerns and terminological it is the foundation of project job, it is the basis that designs construction and consult, it is the center. The following is a list of terms and specifications that you should study carefully.

Sound pressure level

Refers to the logarithmic value of 20 times the ratio of the practical sound pressure to the reference sound pressure in decibels. This is its mathematical expression. Its importance lies in: all the sound system of sound, all the acoustic amplification of the acoustic quality of the site, there is a need for this index, in the later design calculation it is still a calculation benchmark.

When the reverberation

Refers to the time required for the sound pressure level in the hall to drop 60dB in seconds after a stable sound signal is suddenly inset. The mathematical expression is as follows. It can be found that reverberation time is a parameter closely related to the structure and data of architectural decoration. In practical engineering, reverberation time is an important research index of hall acoustics effect.

Power amplification

3. Steps of professional sound engineering

Once the raw materials are ready, the ordered equipment is in place, and other construction projects have been completed, the construction of the sound engineering should be in full swing. The construction of the project directly determines the success or failure of professional sound engineering design, so the construction work is a need to seriously serve as the body of the work, as long as when the design ideas and indicators are faithfully reflected, the final project quality will be guaranteed.

We once had a rough understanding of the nature of professional sound engineering, but in practice, how does professional sound engineering stop? Since the professional audio engineering is comprehensive, the technical requirements are higher, so the understanding of this problem will be able to further understand the work of professional audio engineering to help, but also to the key study of engineering technology will also have a clear mind.

Professional audio engineering is the most important local in engineering design work, the author affirms the engineering task, is required as soon as possible contact related building decoration, power supply department, in building construction, decoration indoor plan, the respect such as power supply for consensus, then the practice of the separation of user needs to make an overall plan. The detailed design work will not stop until the plan is approved by them.

In the design, we should collect a large number of relevant materials, separate the detailed status of the project, stop the detailed calculation of architectural acoustics and power distribution, and put forward the corresponding feasible rectification Suggestions according to the calculation results.

After obtaining the user and the related cooperation unit to the design approval, can according to the design plan and the overall plan to stop the equipment selection, the equipment selection touches the final quality of the project and the company's economic interests, so this is an important work.

After the design plan is confirmed, some necessary preliminary work such as laying pipeline and welding device frame should be stopped at the same time, otherwise, the construction difficulty of sound engineering may become greater and greater as the architectural decoration stops.

Finally is the system debugging, as a result of the engineering design and construction are all on the theory and the external conditions for the system normal work do the necessary preparation for the real running system equipment also demand after the completion of the construction of equipment to stop the thorough and careful adjustment, the purpose is to make the equipment under the specific environment, can play the best performance in corresponding system, eventually make the system under harmonic condition each other to reach the best effect.