ACOUSTIC PROPERTIES OF AN OLD STONE ATRIUM USED FOR CONCERTS PACS REFERENCE 43.55.BR

One of the most famous old buildings often used for concert purposes in Dubrovnik is the "Knezev dvor". Its atrium, where the concerts take place, has specific acoustic characteristics: there is no ceiling while the materials of which it is built are highly reflective. Accordingly, despite of the space liveness, there are no strong late reflections. A series of ETC measurements have been carried out to confirm the results obtained by a 3D sound pressure distribution simulation. The results of speech intelligibility, clarity and definition measurements for some characteristic positions showed specific acoustic properties due to strong reflections from walls and floor