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Impulse Response Simulation of a Small Room and in situ Measurements Validation

The study of reverberation time in room acoustics presents certain drawbacks when dealing with small spaces. In order to reduce the inaccuracies due to the lack of space for placing measurement devices, finite element methods become a good alternative to support measurement results or to predict the reverberation time on the bases of calculating impulse responses. This paper presents a comparison of the reverberation time obtained by means of in situ and simulated impulse responses. The impulse response is simulated using time-domain finite elements methods. The used room for measurements and simulations is a control room of Universidad de Las Americas. Results show a measured mean absolute error of 0.04 s compared to the computed reverberation time.

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Permalink: http://www.aes.org/e-lib/browse.cfm?elib=20657

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