As a major aviation hub in Asia, Beijing Daxing International Airport has extremely high requirements for its audio system: it needs to cover millions of square meters of public areas, including check-in halls, security checkpoints, boarding gates, and baggage claim areas; it must ensure that voice announcements are clear and understandable (especially during flight information announcements and emergency broadcasts); the system needs to operate stably 24/7 and be able to link with the fire protection system; at the same time, it must also ensure the sound quality of background music playback to create a comfortable environment for passengers.

1. Project Background and Core Requirements

As a major aviation hub in Asia, Beijing Daxing International Airport has extremely high requirements for its audio system: it needs to cover millions of square meters of public areas, including check-in halls, security checkpoints, boarding gates, and baggage claim areas; it must ensure that voice announcements are clear and understandable (especially during flight information announcements and emergency broadcasts); the system needs to operate stably 24/7 and be able to link with the fire protection system; at the same time, it must also ensure the sound quality of background music playback to create a comfortable environment for passengers.

2. Core Technologies and Innovations

Our solution utilizes several industry-leading technologies:

2.1 Fully Digital Audio Transmission

The system adopts a digital audio network solution based on the DANTE/AES67 standard.

power, audio transmission, system management, and control signals simultaneously via a single network cable . This significantly reduces the number of traditional devices and cabling complexity, and also substantially lowers installation and maintenance costs. Digital transmission ensures high-quality audio signals throughout the network transmission process, eliminating signal attenuation issues.

2.2 Intelligent Power Management System

We designed a smart power amplifier cluster specifically for airports, employing Class D amplifier technology.

This achieves high-efficiency power output and low-energy operation. The system features automatic load detection, which can match the power requirements of different areas in real time, maximizing energy savings while ensuring sound coverage quality.

2.3 High-definition speaker system

We have customized and designed a variety of speaker solutions to suit the characteristics of different areas of the airport:

All of these loudspeakers feature high sensitivity (92dB) and a wide frequency response (200-10kHz).

This ensures a perfect balance between voice clarity and music fidelity.

4. Performance advantages of the solution

Our solution has significant advantages over traditional airport audio systems:

· Exceptional speech clarity : Employing professional audio processing algorithms, it ensures that speech broadcasts remain clear and intelligible even in noisy environments, with a speech intelligibility rate exceeding 90%.

· Extremely high system reliability : Key components adopt redundant design, and the main and backup systems automatically switch to ensure uninterrupted operation 24/7, meeting the stringent requirements of airport operations.

· Easy maintainability : The system has remote monitoring and diagnostic functions, allowing technicians to monitor the status of all equipment and troubleshoot faults via the network, significantly reducing maintenance costs.

· Powerful scalability : The IP-based network architecture allows the system to be easily expanded by the field, simply by adding terminal devices and expanding the network configuration.

· Energy- saving and environmentally friendly : It adopts high-efficiency Class D power amplifier technology and intelligent power management, which saves more than 30% energy compared with traditional audio systems.

5. Implementation and Service Support

To ensure the smooth implementation of the project, we assembled a dedicated technical team to provide full-process services from design and installation to commissioning.

· Customized design : We tailor audio solutions to the specific acoustic characteristics and functional requirements of different areas of the airport.

· Strict quality control : All products have passed ISO9001 quality system certification and 3C mandatory certification to ensure compliance with international standards.

· Professional installation and commissioning : On-site installation and system commissioning are handled by an experienced team of engineers, optimizing speaker layout and sound field uniformity.

· Long-term technical support : We provide a warranty period of more than 3 years and 24-hour emergency response service to ensure the long-term stable operation of the system.

Conclusion

Our audio solution for Beijing Daxing International Airport integrates state-of-the-art digital audio technology, a networked control platform, and an intelligent management system. It not only meets the airport's high standards for voice broadcasting but also provides passengers with a comfortable auditory environment. The successful implementation of this project signifies that the audio systems of major transportation hubs in China have reached international leading levels and provides a technical standard reference for audio in the construction of future smart airports.

Through this project, our company demonstrated its technical strength and integration capabilities in the field of large-scale public audio systems, laying a solid foundation for future participation in large-scale international infrastructure projects.