Acoustic Bulletin

Room acoustics blog

Euronoise 2025

Remodelling of open plan De Werkplaats primary school – acoustic design and operational challenges

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Introduction De Werkplaats in Bilthoven, (NL) inspired by Kees Boeke’s educational philosophy, was designed as a progressive primary school with open learning environments. The aim: to stimulate collaboration, autonomy and inclusivity. In practice, however, the open spaces proved to pose considerable acoustic and organisational challenges. This led to a large-scale remodel, during which objective and […]

From Theory to Reality : Assessing Predictive Models for comparison of Reverberation Time results

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Guest post by Marco Caniato University of Applied Science HFT of Stuttgart, based on his recent presentation at Forum Acousticum / Euronoise 2025 conference in Málaga. Background Reverberation time (RT) is a fundamental parameter in room acoustics, directly affecting speech intelligibility, comfort, and the overall acoustic quality of a space. Yet, despite decades of research […]

From RT to Clarity. A Simpler Way to Assess Classroom Speech Intelligibility

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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 […]

Classroom Noise: How Activities Shape the Sound Environment

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A guest post by Chiara Visentin, a researcher at the University of Ferrara, Italy Background While noise sources like traffic or ventilation systems can contribute to classroom acoustics, in primary schools the dominant and most persistent sound is the students’ own activity and communication. Talking, moving, shifting chairs and desks all contribute to a highly dynamic […]

Replicating Performance Venues in Virtual Reality for Performance Preparation

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Guest post by Carly J. Wingfield from The School of Music, University of Illinois Urbana-Champaign, USA. Introduction Singers often adjust their vocal production based on the acoustics and visual aspects of a performance venue, which can differ greatly from the typical rehearsal space. This mismatch can lead to changes in technique and increased anxiety due […]

The problems of open learning environments are not high sound levels but other disturbances caused by school activities

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Study by Turku University of Applied Sciences Study overview A new study published in Building and Environment and recently presented at Forum Acousticum Euronoise 2025 in Malaga found that teaching staff were dissatisfied with open and flexible learning spaces, even though the sound levels during activities were slightly lower in open than in traditional enclosed […]