1、 Introduction
The sound reinforcement scheme is a design scheme proposed based on a thorough understanding of the engineering conditions, detailed knowledge of the usage and functional requirements of Party A, and in accordance with the national standards for sound reinforcement systems in sports venues. We have carefully read all the contents of the document and provided reference materials and relevant attachments to form a comprehensive and scientific design scheme.
Small and medium-sized venues are used to hold various activities, large-scale gatherings, speeches, reports, news releases, product displays, hold small and medium-sized cultural performances, dances, and other events. Usually large in size and equipped with a stage, tiered seating, and a separate control room. It combines modern professional audio facilities, multimedia display equipment, high-definition camera and video technology, intelligent centralized control, stage lighting and other diverse functions, and has been rapidly popularized and applied in recent years, which is very suitable for the needs of China's national conditions. Usually established in enterprises, institutions, schools, government agencies, exhibition centers, business hotels, convention and exhibition centers, and other places.
2、 Execution standards
All equipment and materials involved in the design shall be designed, manufactured, inspected, and tested in accordance with the following standards and specifications, unless otherwise specified.
GB/T 28049 Design Specification for Sound Reinforcement Systems in Halls and Sports Venues
GB/T 15508 Acoustic Language Clarity Testing Method
Design Standards for Intelligent Buildings (GB/T50314-2006)
Code for Electrical Design of Civil Buildings (JBJ/T16-92)
Code for Acceptance of Construction Quality of Building Electrical Installation Engineering (GB50306)
Acceptance Specification for Conference Television System Engineering (YD5033)
Application of Connectors for Interconnection of Sound System Equipment (GB/T14197-93)
Preferred Connection Values for Interconnection of Sound System Equipment (GB/T14197-93)
Measurement Method for Sound Amplification Characteristics in Halls (GB4959-1955)
Acoustic Characteristics Index of Hall Sound Reinforcement System (GYJ-25-86)
Acoustic Characteristics and Measurement Methods of Sound Reinforcement Systems (WH01-93)
Design Code for Sports Buildings (JGJ31-2003)
Specification for Acoustic Design and Measurement of Sports Centers (JGJ/T131-2000)
Guidelines for Lightning Protection of Electronic Equipment (GB7450-87)
Safety of Information Technology Equipment, including Electrical Equipment (GB4943-95)
Code for Design of Communication Grounding in Industrial Enterprises (GBJ79-85)
Code for Fire Protection Design of High rise Civil Buildings (GB50045-95)
And other current national and industry level language and music standards and specifications, bidding technical requirements, bidding design related drawings and material lists.
3、 Design concept
1. Design objective: The design of the sound reinforcement system should ensure clear and uniform coverage of the sound in the venue, meeting the sound requirements of different types of activities.
2. Equipment selection: Choose appropriate sound reinforcement equipment based on the size, purpose, and budget of the venue, including speakers, amplifiers, processors, etc.
3. Layout planning: Based on the venue structure and acoustic conditions, plan the layout of speakers reasonably to ensure optimal sound effects.
4、 Acoustic Design
1. Uniformity of sound field: The sound reinforcement system should ensure uniform sound field in all areas of the venue, avoiding phenomena such as sound focusing and blind spots.
2. Sound clarity: Ensure clear speech and avoid interference such as echoes and howls.
3. Sound building measures: According to the characteristics and purposes of the venue, appropriate sound building measures should be taken, such as laying sound-absorbing materials, adjusting the reflection angle, etc.
5、 Electrical and safety design
1. Power supply and power: Provide stable power supply and sufficient power to ensure the normal operation of the equipment.
2. Grounding measures: Adopt reliable grounding measures to ensure personnel safety and equipment stability.
3. Lightning protection: Take effective lightning protection measures based on the current situation of the mine.
6、 Construction and acceptance
1. Construction requirements: Strictly comply with construction specifications to ensure construction quality.
2. Acceptance testing: Conduct acceptance testing according to design requirements to ensure system performance meets standards.
3. Document management: Establish complete project documents for easy maintenance and management in the future.
7、 Summary
The design specifications for large venue sound reinforcement systems cover multiple aspects, from overall design to specific construction, and each link must comply with corresponding standards and requirements. Strictly adhering to these regulations can help achieve high-quality sound effects and provide the best auditory experience for events in the venue. At the same time, this is also an important guarantee for ensuring the safe and stable operation of the sound reinforcement system. When designing the venue sound reinforcement system, the actual situation should be fully considered, and the specifications and requirements described in this article should be followed to achieve the best design effect.