Guest post by Deniss Mironovs, acoustic consultant at Akukon / Researcher at RTU / PhD Introduction Speech Intelligibility is one of the main attributes of a well-functioning classroom or auditorium. It is widely known, that learning outcomes depend on the acoustical conditions of the classrooms. Common practice is to use reverberation time RT as a […]
speech intelligibility
ENSA Architecture School in Lyon undergoes a co-design acoustic renovation with the architecture students
A sound environment co-design project renovation gives the students an applied and deep learning experience. The Architecture school was built in the 1980s, ENSA Lyon is architecturally distinctive but acoustically challenged. A prototype renovation was initiated in a 143 m² vaulted classroom to address excessive reverberation and poor speech intelligibility—critical issues in educational environments. Acoustic […]
C50 values correspond with speech and noise levels during groupwork classroom activities
This study investigates the real acoustic conditions of 26 primary school classrooms during lessons. There was a specific focus on how classroom activity type, student age, and room acoustics shape both speech levels and activity noise. Using Gaussian Mixture Models, the researchers separated teacher and student speech from non-speech activity noise across 93 homogeneous activity […]
