Matching simulations with measured acoustic data from Roman Theatres using the ODEON programme

Martin Lisa Nielsen, Jens Holger Rindel, Claus Lynge Christensen, Anders Christian Gade

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

In the context of the ERATO research project (“identification, Evaluation and Revival of the Acoustical heritage of ancient Theatres and Odea”) funded by the European Union, acoustic measurements as well as computer simulations have been carried out in the Aspendos Theatre, Turkey and in the south theatre in Jerash, Jordan. The simulations are made with the ODEON software, for which a new frequency-dependent diffraction method is currently being developed for implementation in future versions of the programme. In order to make the virtual restorations of these ancient Roman theatres as correct as possible, it is important to attempt calibration of the models with respect to as many of the relevant acoustic parameters as possible. Thus, besides the overall value of reverberation time, we also try to match the variation with position of other important acoustic parameters, such as Strength and Clarity described in ISO 3382. With the new diffraction and scattering calculation method we hope to improve this match, because these phenomena are regarded very important for the acoustics in these open air theatres, in which the sound field is far from being a “normal” three-dimensional diffuse field. The paper describes this exercise, the calculation parameters in ODEON that were adjusted in the process, and the extent to which it was successful.
Original languageEnglish
Title of host publicationForum Acusticum 2005
Publication date2005
Publication statusPublished - 2005
EventForum Acusticum - Budapest
Duration: 1 Jan 2005 → …

Conference

ConferenceForum Acusticum
CityBudapest
Period01/01/2005 → …

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