Suzhou Zhenhua Middle School Reduces Playground Noise with Audfly Directional Sound Speaker

Year: 2025

Products: Outdoor Directional Speaker System

Model: Model SA-3001A

Project Overview

Suzhou Zhenhua Middle School is located in the historic center of Suzhou, where the school playground is separated from nearby residential buildings by only a short distance.

Daily outdoor broadcasts, physical education classes, and school events required clear public address coverage, but traditional loudspeaker systems allowed sound to spread into the surrounding neighborhood.

To improve outdoor communication while reducing community noise impact, the school deployed the Audfly Directional Sound Speaker solution.

The Challenge

The school's location presented unique acoustic challenges. Traditional outdoor loudspeakers broadcast sound in all directions, making it difficult to provide clear coverage inside the playground without increasing noise outside the campus.

The school needed to:

Reduce sound spillover into nearby residential areas
Maintain clear announcements across the playground
Support daily teaching and outdoor activities
Improve the balance between campus operations and community comfort

The Solution

After conducting detailed acoustic measurements, Audfly designed an outdoor audio solution tailored to the playground layout.

Powered by directional sound technology, localized sound field control, and the proprietary A-AFC algorithm, the system concentrates sound within the intended listening area while significantly reducing sound propagation behind the speakers.

The system achieves a front-to-back sound pressure level difference of up to 40 dB, helping keep sound focused inside the playground and minimizing noise impact beyond the playground boundary.

The Results

Following installation, the playground achieved clear outdoor communication while significantly reducing unwanted sound outside the campus.

Key benefits included:

Reduced sound spillover into nearby residential areas
Clear playground announcements
Better outdoor communication for teachers and students
Improved harmony between the school and surrounding community

The project demonstrates how directional sound technology can help urban schools solve outdoor noise challenges without compromising communication quality.

Products Used

Audfly Directional Sound Speaker Model SA-3001A

Conclusion

Schools located near residential communities often face challenges balancing effective outdoor communication with neighborhood noise control.

Audfly Directional Sound Speaker helps deliver focused playground audio while reducing unwanted sound outside the listening area, creating a quieter environment for surrounding communities.

Super Directional Speaker