Audio and Video System Solution | Application Case of Baiyun Lake Street Chamber of Commerce Building

Baiyun Lake Street Chamber of Commerce Building
In the current era of increasing pursuit of efficiency and immersive experience in business and communication scenarios, professional audio and video systems have become the core configuration in many places. The Baiyun Lake Street Chamber of Commerce Building serves as an important platform for regional economic exchange and cooperation.

1、 Project Background
The Baiyun Lake Street Chamber of Commerce Building undertakes the mission of hosting various business conferences, industry forums, investment promotion events, and other important activities. To meet the diverse needs of different activities, creating a fully functional and technologically advanced audio and video environment has become an inevitable choice.


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. Audio system
Sound reinforcement equipment: The building adopts a distributed speaker layout, and different types of speakers are selected according to the functions and acoustic characteristics of different spaces. In large conference rooms and multifunctional halls, VQ series linear array sound systems are installed, which can provide uniform sound coverage and ensure that attendees in every corner can hear the sound clearly. In small conference rooms and rest areas, professional full range speakers are used to ensure sound quality without affecting the aesthetics of the space.

Audio processing equipment: Equipped with a professional digital audio processor, it can accurately balance, compress, and limit the input audio signal, effectively improving sound quality. At the same time, it can independently adjust the volume and tone of different areas to meet the needs of different scenes. For example, during large-scale lectures, it can enhance the clarity and loudness of sound; And in small business negotiations, it can create a soft and comfortable sound environment.

Sound pickup equipment: Multiple sound pickup devices have been configured according to the needs of conference activities. A capacitive conference microphone has been installed on the desktop of the conference room, which has high sensitivity and clear sound quality, and can accurately pick up the speeches of attendees. For large-scale events and speech scenes, wireless handheld microphones and lavalier microphones are also equipped to facilitate the speaker's free movement and ensure stable sound transmission.

2. Video system
Display device: It adopts ultra high definition LED large screen, which has the characteristics of high brightness, high contrast, and wide viewing angle. Whether it is playing presentations, video materials or live broadcasts, it can present clear and realistic image effects.

Video signal processing equipment: In order to achieve switching, splicing, and processing of multiple signal sources, professional video matrix switchers and image processors are installed. This device can integrate video signals from different signal sources such as computers, cameras, and Blu ray players, and flexibly switch to the corresponding display devices according to activity needs. At the same time, image processors can also perform operations such as scaling, cropping, and stitching on video signals to achieve creative video display effects, such as multi screen linkage display in large-scale events.

Camera equipment: High definition cameras have been installed in conference rooms and event venues for meeting recording and live streaming of events. These cameras have automatic focusing, automatic white balance, and pan tilt control functions, which can flexibly capture images from various angles. By cooperating with video signal processing equipment, real-time switching and recording of multiple video signals can be achieved, providing high-quality video materials for subsequent data organization and promotion.

4、 Electrical and safety design
[International IEC General Standard] GBJ232-82 of the People's Republic of China
Standard Specification for Construction and Acceptance of Electrical Equipment Installation Engineering GBJ300-8, People's Republic of China
Unified Standard for Quality Inspection and Evaluation of Building Installation Engineering GB50055-9
Design Code for Distribution of General Electrical Equipment National Standard GB50052 of the People's Republic of China
【 Code for Design of Low Voltage Distribution Systems 】 National Compulsory Standard GB5005495 of the People's Republic of China
1. Pipeline laying instructions:
The speaker cable is made of high-quality wire and designed according to the length and thread calculation formula to reduce power loss.
The speaker plug adopts a wire clamp type at the fixed position.
The microphone cable adopts a dual balanced transmission method to reduce noise.
The microphone pre embedded wires adopt a double shielding method to isolate interference.
The detailed design of the lines and pipelines will be carried out in the detailed design of the audio system.

Installation process instructions for speakers:
All lifting and wall mounted speakers are designed with load-bearing capacity and certified by the architectural design department to ensure long-term use.
All the suspended steel structures and load-bearing components of the speakers are treated with finished overall powder coating technology, rust proof paint and marine topcoat for corrosion and rust prevention. All fasteners are made of high-quality stainless steel or galvanized products to ensure long-term reliable safety.

Power supply and grounding system:
（1）The control room requires the owner to provide an independent secondary power supply to reduce power noise interference.
（2）The power supply of the audio system must adopt an independent grounding system, and the standard shall be implemented in accordance with the relevant national "Installation Specification for Low Voltage Distribution Equipment".

5、 Application scenarios
Business meetings: In daily business meetings, the audio system ensures that each participant's speech can be clearly conveyed, while the video system displays relevant information and data through high-definition displays, improving the efficiency and effectiveness of the meeting. For example, in a project presentation meeting, the speaker uses a wireless microphone to give a presentation, while the PPT from the computer is displayed on a large screen through a video matrix switcher. Attendees can intuitively understand the progress and achievements of the project.

Industry Forum: For large-scale industry forums, the powerful amplification capability and precise audio processing function of the audio system can meet the listening needs of many attendees. Multiple high-definition cameras capture the live footage of the forum from all angles, and real-time switching and live streaming are carried out through video signal processing equipment, allowing industry professionals who cannot attend the event to participate synchronously. At the same time, the forum theme, guest introductions, and speech content displayed on the LED screen create a professional and enthusiastic atmosphere.

Investment Promotion Conference: At the investment promotion conference, professional audio and video systems became a powerful tool to showcase regional advantages and project highlights. Through carefully crafted promotional videos, presented on high-definition screens with stunning visual effects, and accompanied by high-quality audio explanations, it attracts the attention of potential investors. For example, using video stitching technology to combine and display multiple images such as regional planning maps and project renderings, providing viewers with a more comprehensive and intuitive experience.


6、 Project effectiveness
The application of professional audio and video systems in the Baiyun Lake Street Chamber of Commerce Building has significantly improved the building's comprehensive service capabilities and image. Advanced audio and video equipment provides high-quality audio-visual experiences for various activities, enhancing their attractiveness and influence. At the same time, efficient audio and video systems have improved the organization efficiency of meetings and events, reducing time waste caused by equipment issues. Since the system was put into use, it has successfully hosted multiple large-scale business events and received unanimous praise from attendees and organizers, providing a higher quality platform for economic exchange and cooperation in Baiyun Lake Street.