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The basic requirements of multifunction hall acoustics in audio and video system

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The basic requirements of multifunction hall acoustics in audio and video system

Date of release:2019-06-18 Author: Click:

The basic requirements of multifunction hall acoustics in audio and video system

Meeting hall with multi-function audio and video system is the product of modern meeting requirements. It breaks the traditional single "lecture hall" layout pattern of meeting, and can satisfy the organizers to change and increase the content of meeting and enrich the form of meeting without changing the meeting location. It is the development trend of government agencies and hotel meeting rooms in the future. The common multifunctional conference hall has: chairman type, round table type two forms.

The main function of the multi-functional audio and video system hall is diversity (such as: conference hall, video conference hall, lecture hall, academic discussion hall, training hall, etc.), which is especially suitable for the needs of China's national conditions and has been rapidly applied in recent years. In the initial construction investment is likely to be higher than the single function of investment and construction, and from A technical perspective, the system on the design and construction has certain technical complexity, especially for the use of the user side also has A certain technical requirements, which requires A technique to integrated management of different function of the multi-function conference hall A/V equipment coordination work, to make it this kind of technology is the central control technology.

The whole audio and video system of the multi-functional conference hall should complete the meeting discussion, training or teaching tasks efficiently, which means that it is necessary to combine each system and give full play to the functions of each system to realize modern meeting, teaching, training and academic discussion.


音视频系统中多功能厅音响的基本要求

The common requirements of acoustic design and decoration design of conference room and conference hall integrated by audio and video systems are to ensure language clarity, create sound environment conditions of short reverberation, and use sound amplification system to enable the audience to obtain sufficient sound pressure level (loudness) and sound field uniformity. But different functional requirements, body shape, decorative style requirements, volume, seat number and other factors require different acoustic measures; And the coordination with the electro-acoustic equipment system (the coordination between construction sound and electro-acoustic) is the key to the success of such projects.

The acoustic design characteristics of meeting rooms and conference centers are determined by their own size, range of use and requirements. Mainly include:

The difference in size (volume and capacity) is greater than in all the halls. Small to a dozen people, volume of about 100m3; The large one can accommodate ten thousand listeners with a volume of 100,000 m3 or more. Therefore, the corresponding sound quality indicators are also very different, and must be determined according to the specific scale.

The levels, USES and construction standards of audio and video systems vary greatly, such as meeting rooms and halls of departments, as well as all kinds of meeting rooms and halls for international conferences. Due to the different grades, USES and construction standards, the equipment used, interior decoration and acoustic treatment measures will also vary greatly.

According to the purpose and capacity, some adopt sound reinforcement system, some do not adopt sound reinforcement system or adopt sound reinforcement system has different requirements on sound environment, and different treatment is required in decoration design methods and acoustic treatment measures.

Acoustic design (sound quality design) in the interior decoration design of meeting rooms and conference halls of audio and video systems mainly includes:

1. Selection, design and control of optimal reverberation time;

2. Sound absorption and sound reinforcement structure design;

3. Control of sound quality defects;

4. Coordinate with sound amplification system design and architectural specialty determination: location and area of sound control room;

5. Installation mode of speakers, etc.

The audio and video system design of the multi-functional conference hall consists of the following seven subsystems:

(I) design of conference hall multimedia display system;

(ii) conference hall A/V system design;

(iii) design of conference room environmental control system;

(iv) design of intelligent multimedia central control system for conference hall;

(v) conference hall interior acoustic decoration system design;

(vi) design of conference hall stage lighting and control system;

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