Determining principles for the engineering design of professional audio engineering

Architectural acoustics is the foundation of sound engineering, and electroacoustics is the core of sound engineering. It can be considered that sound engineering technology includes electroacoustics, architectural acoustics, psychoacoustics and some of the contents of the first science, which emphasizes the auditory experience of the final sound, and it studies the whole process from the production of sound to the auditory feeling produced by sound.

With the development of science and technology, the standard of living has improved. The demand for creating a good sound environment is more urgent, which puts forward more requirements for the use of theaters, auditoriums, cinemas and stadiums, and higher listening conditions. For office buildings and other buildings, a more comfortable and quiet environment is required. All of this brings new challenges to sound engineering, and at the same time makes it an important discipline for controlling indoor and outdoor acoustic environments.

According to your requirements designed, renderings, system diagrams, installation roadmaps, etc

It should be closely cooperated with architectural acoustic design, architectural design and other related engineering design majors, and the position of the speaker system should be used as the main sound source point, and the reverberation time, reflection distribution and other problems should be solved one by one.

It should meet the provisions of the national standard "Optimal Matching Value for Interconnection of Sound System Equipment" GB T 14197 and "Performance Requirements for Electrical and Audio of Conference System" GB T 15381, and a balanced transmission mode should be adopted between system equipment; The digital transmission and interface shall meet the requirements of the relevant national industry standard "Multi-channel Audio Digital Serial Interface" GY T 187.

Complete drawings and explanatory documents should be provided. Including piping diagrams, design layout diagrams, system principle block diagrams and configuration and wiring diagrams.

The sound reinforcement system should not cause environmental noise pollution to the occupied areas outside the service area.

The number of microphones should be sufficient to meet the pickup of different types of sound sources, and in addition, if wired equipment is used, the signal wiring should be a shielded balanced cable.

The loudspeaker system must have reliable safety measures in place, and if it involves changes to the load-bearing structure, etc., the safety of the existing building structure must be re-checked by a qualified design unit.

The power loss between the power amplifier and the main speaker system should be less than 10% of the power of the main speaker system, and the power loss of the subwoofer system should be less than 5%.

??Because professional audio engineering involves more related technologies, and the quality of the project can be measured by the necessary testing means, so the relevant departments of the state have formulated a number of national or ministerial standards, these standards are the majority of scientific research authors according to the development of China's professional audio technology and building construction technology, with reference to the relevant provisions of foreign countries and formulated, their formulation and implementation are in practice continue to develop and improve, can fully reflect the technical level of China's professional audio industry, As an engineering and technical salesperson engaged in the professional audio industry, we should have an in-depth understanding of these standards, and some projects with higher electroacoustic quality requirements should be implemented in strict accordance with the standards, among which the engineering construction has a high reference value: GB3947 - acoustic terminology; GB4959 - Measurement method for sound reinforcement characteristics of halls; GYJ25 - acoustic characteristics index of hall sound reinforcement system; SJ2112-82 - Optimal electrical mating value for the interconnection of hall sound reinforcement system equipment; GB T14218-93 - Performance parameters and test methods of electronic dimming equipment; GB T15485—Calculation of the Speech Intelligibility Index, etc.

Due to the length of the article, the specific content of the standard will not be excerpted here, but the engineering and technical salesperson should carefully collect these materials for reference in design and testing.

Requirements for doing sound system engineering technology:

As a professional audio project with high technical content and greater responsibility, it has special requirements in construction technology. First of all, it is necessary to have a qualified construction team. Because the construction of the sound project must be efficient and reliable, if there is no qualified construction team, not only the design scheme can not be effectively implemented, but also the construction quality is difficult to be guaranteed, in this team should have:

Electricians, welders and electronic technicians with relevant technical licenses, as well as some personnel with experience in sound engineering construction, can ensure the smooth completion of the project.

Secondly, the construction of the project must be carried out in strict accordance with the design. Because sound engineering is a complex project, which is greatly affected by theoretical design and construction technology, if it is done by imagination and experience in the construction of the project, it will definitely bring adverse consequences, and the designer must become the basis for the construction work after fully understanding the various situations and making a series of calculations. Finally, the project must be carried out in accordance with the corresponding technical specifications.

Sound engineering in the construction will involve different types of work, the construction technical requirements and safety measures of these types of work are not the same, only the careful implementation of these technical specifications, in order to ensure the quality of each construction link, while ensuring the safety of construction personnel and equipment.

To be an engineer must have certain technical requirements, first of all, you must understand this thing, and secondly, you must be handy with this thing.