Numerical simulations of Italian opera houses using geometrical and wave-based acoustics methods

Dario D’orazio, Giulia Fratoni, Anna Rovigatti, Brian Hamilton

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The acoustics of opera houses represents an interesting topic in scientific literature due to their architectural and morphological characteristic traits (shape, materials, coupled volumes). A way to exploit the outstanding value of Italian theatres acoustics is to perform different typologies of music while adding or removing acoustically significant elements on the stage. Numerical simulations may be used as useful tools for designing distinct layouts and for optimising such performances. The present study investigates strengths and weaknesses of two different room acoustics modelling approaches: geometrical acoustics (GA) and wave-based methods. The commercial GA software ODEON and a hybrid ray-tracing and finite-difference timedomain (FDTD) approach are applied in this work. Measurements carried out in a sample of Italian Opera houses provide reference data for 3D virtual models calibration. Preliminary comparisons between room acoustical simulation methods are shown and discussed.
Original languageEnglish
Title of host publicationProceedings of the 23rd International Congress on Acoustics
Subtitle of host publicationIntegrating 4th EAA Euroregio 2019
EditorsMartin Ochmann, Michael Vorlander, Janina Fels
Pages5994-5996
Number of pages3
DOIs
Publication statusPublished - 18 Oct 2019
Event23rd International Congress on Acoustics - Aachen, Germany
Duration: 9 Sep 201913 Sep 2019

Publication series

NameInternational Congress on Acoustics
ISSN (Print)2226-7808
ISSN (Electronic)2415-1599

Conference

Conference23rd International Congress on Acoustics
Country/TerritoryGermany
CityAachen
Period9/09/1913/09/19

Keywords

  • opera house
  • acoustic simulation
  • ray-tracing
  • wave-based method
  • finite-difference time-domain

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