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Study in Japan Shows That Classrooms With Acoustic Ceilings Reduce Noise, Improve Communication, and Decrease Stress in Preschool Children.
When a child first enters a daycare or preschool, the challenge goes beyond the emotional. A new study conducted in Japan points out that the room’s architecture, especially the acoustics, can directly influence the well-being of young children.
Noise Can Hinder Learning
In Japan, most classrooms lack any structure to absorb sound.
This creates environments with a lot of reverberation, which makes verbal communication between teachers and children difficult.
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The situation is even more critical for young children who are in the process of learning to speak and listen.
Young children have difficulty filtering sounds. When they do not understand what is being said, they tend to raise their voices.
This creates a noisy cycle that elevates the stress of everyone in the room, potentially resulting in crying fits.
“We expect that preschool-aged children entering school for the first time normally feel stressed due to the difficulty of verbal communication,” stated Ikuri Matsuoka, a master’s student at Kumamoto University.
Test in Two Different Classrooms
To investigate the impact of acoustics, Matsuoka conducted a six-month experiment. Two classrooms were compared: one standard and the other with a ceiling adapted with polyester panels that absorb sound.
The goal was to evaluate whether this adaptation would help reduce noise and improve verbal interaction.
During the study, interviews were conducted with four teachers, and audio and video recordings were made.
Three of the teachers reported noticing a change in reverberation. One teacher with 25 years of experience reported feeling more comfortable talking with the children.
To make the analysis even more accurate, Matsuoka and her advisor used artificial intelligence and machine learning.
This allowed them to create a system to automatically detect crying episodes, which made it possible to monitor the evolution of children’s behavior more efficiently.
More Attention to School Acoustics
Matsuoka advocates that the study’s results serve as a warning for educators, architects, and policymakers.
The absence of acoustic standards in classrooms can affect child development, something that still goes unnoticed by many.
The findings will be officially presented this Friday, May 23, at 1:40 PM (Central Time), at the 188th Meeting of the Acoustical Society of America and the 25th International Congress on Acoustics.
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