A geometrical acoustic simulation of the effect of occupancy and source position in historical churches

Acoustics as a cultural heritage: The case of Orthodox churches and of the “Russian church” in Bari

“…The fact that the difference between outliers and other points was not negligible (and that the value was larger than the theoretical one), suggested that the missing contribution was due to direct sound and also to early reflections. By means of the theoretical value it was possible to estimate the variation in Ts values under occupied conditions [12]. Results showed that, excluding the outliers, values never exceed 150 ms, thus suggesting that, when the church is occupied, good intelligibility could be achieved without any electro-acoustic support.…”

Acoustic Intervention in a Cultural Heritage: The Chapel of the Royal Palace in Caserta, Italy

“…Figure 6 shows the plan distribution of the occupancy, which was modeled as boxes. The effect of the occupancy and the exact location of the source in historical churches have recently received increasing attention due to the highly reflective characteristics of these spaces [17,20]. In previous studies, it was found that the presence of the audience in churches determines a significant improvement of the monaural acoustical parameters, especially since the reverberation reduces once the presence of the audience is considered.…”

Soundscape evaluation in Han Chinese Buddhist temples

“…Desarnaulds et al took acoustic measurements at six churches and analysed speech intelligibility in the churches under the field conditions (both occupied and unoccupied) [21]. Alvarez-Morales et al combined measurement and simulation to understand the acoustic environment of historical churches and analyse the effects of different sound source positions on the acoustic field [22,23]. Orfali and Ahnert measured and analysed the acoustic field parameters in two mosques [24,25].…”