A controlled acoustic environment in schools is very important to allow teachers' and students' voices to be clearly heard and intelligible. By providing a suitable Reverberation Time, the build-up of sound within a classroom is controlled, reducing the need for a teacher to raise their voice and the possible health impacts this can have. This paper describes two assessment methods (Sabine formula and CATTAcoustics modelling software) for the estimation of the reverberation time in general teaching spaces and compare these results with the measured reverberation time within completed classrooms to assess how accurate the predicted estimation methods results are against actual in-situ measurements. Results show that the two prediction methods are both valid for the prediction of the Reverberation Time. However, deciding which one is most accurate depends on different elements. The room size, the presence of furniture, the chosen absorption treatment and the absorption data used in the calculation/simulation of the specific case can affect the best methodology to use in the prediction.
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