Year: 2026
Products: Outdoor Directional Speaker System
Model: Model SA-3001A
Project Overview
Located in the historic Qinhuai District of Nanjing, China, Qinhuai No.1 Central Primary School and Mafujie Primary School have long served their local communities with rich educational traditions.
However, the schools' playgrounds are surrounded by residential areas, creating challenges during outdoor activities such as morning exercises, sports classes, and school events. Traditional loudspeaker systems often allowed sound to spread beyond the campus, affecting the surrounding community.
To create a better balance between active campus activities and a quieter neighborhood environment, both schools upgraded their outdoor audio systems with Audfly Directional Speaker System.
The Challenge
For schools located in densely populated urban areas, outdoor broadcasting requires clear sound coverage while minimizing unnecessary noise impact.
The two schools faced several challenges:
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Traditional loudspeakers spread sound in multiple directions
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Outdoor announcements could affect nearby residential areas
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Reducing volume could impact speech clarity for students
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Different playground layouts required customized sound solutions
The schools needed an audio system that could maintain clear communication within the playground while controlling sound outside the intended area.
The Solution
Audfly designed and deployed
Outdoor Directional Speaker Systems for both schools, optimizing system placement and sound coverage based on their individual playground layouts and surrounding environments.
Using directional audio technology and advanced sound field control algorithms, the system focuses sound toward the target listening area while significantly reducing unwanted sound propagation outside the playground.
Through detailed acoustic analysis and installation optimization, Audfly adjusted speaker positioning, radiation angles, and system parameters to achieve balanced sound coverage inside the playground while minimizing noise impact on surrounding communities.
The system can achieve a front-to-back sound pressure level difference of up to 40 dB, helping keep sound concentrated within the required coverage area.
The Results
After installation, both schools achieved clearer outdoor communication with improved control over sound distribution.
Students can hear announcements, instructions, and activity audio clearly across the playground, while surrounding residential areas experience significantly reduced noise impact.
Key benefits included:
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Clear and focused outdoor announcements
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Reduced sound spillover beyond the playground
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Improved balance between campus activities and community comfort
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Customized audio coverage for complex urban environments
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Better outdoor communication experience for students and teachers
The successful deployment demonstrates how directional audio technology can help historic schools in densely populated areas solve outdoor sound management challenges.
Products Used
Conclusion
Outdoor audio systems in urban schools need to deliver clear communication without creating unnecessary noise for surrounding communities.
Audfly Outdoor Directional Speaker System provides a practical solution by controlling sound direction and coverage, helping schools create a more comfortable learning environment while maintaining harmonious relationships with nearby neighborhoods.
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