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The acoustics of the caves
Affiliation:1. Departamento de Geodinámica, Universidad de Granada, 18071 Granada, Spain;2. Instituto Geológico y Minero de España, Ríos Rosas 23, 28003, Madrid, Spain;3. Instituto Andaluz de Ciencias de la Tierra, CSIC-Universidad de Granada, 18071 Granada, Spain;4. Water Resources and Environmental Geology, University of Almería, 04120 Almería, Spain
Abstract:This work shows the acoustic measurements realized at three underground places: the caves of Pertosa or of the Angel, the caves of Castelcivita and the caves of Castellana. These places are used for some years to represent music and theater performances, whose success is also due to the mystery and the charm that distinguish them, based on the natural setting of the caves. The places of the caverns where the shows are played were characterized analyzing the monaural acoustic parameters (T30, EDT, C80, D50 and Rasti) obtained with the impulse response resulting from blowing up some balloons inside them. The values of monaural acoustic parameters measured in the caves can be compared with the parameters of the concert halls currently in use.
Keywords:Caves  Underground places  Room acoustics
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