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Acoustic Evaluation of a Baroque Church- Through Measurements, Simulation, and Statistical Analysis

2014; Canadian Acoustical Association; Volume: 42; Issue: 1 Linguagem: Inglês

2291-1391

David Queiroz de Sant’Ana, Paulo Henrique Trombetta Zannin,

Acoustic Wave Phenomena Research

This paper describes the acoustic evaluation of historical baroque church in Brazil - Igreja Nossa Senhora do Rosario de Sao Benedito (Church of Our Lady of the Rosary of St. Benedict), built in the 18 th century. The evaluation was performed in three stages: 1) in situ measurements of reverberation time (RT), early decay time (EDT), definition (D 50 ) and clarity (C 80 ); 2) reproduction of field conditions in a computational simulation using ODEON room acoustics prediction software, and 3) statistical analysis of the data. The integrated impulse response method was used here, as recommended by the ISO/3382-1:2009 standard. Results were subjected to an analysis of variance (ANOVA) to test the accuracy of the model. The model can be considered accurate, especially as far as reverberation times are concerned.