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EnglishRoom Acoustic Simulation models have been in use for some time now, they are capable of simulating the impulse response of a room, as well as estimate objective parameters. Various benchmarks have been done to evaluate their accuracy in reproducing the impulse response of existing musical spaces. When it comes to simulating sound reflection of curved surfaces, most simulation models depend on the discretization of these surfaces into smaller planar segments. This simplification can be particularly problematic when it comes to the complex curved forms that are now being used in a wide range of acoustic environments, especially in concert and opera halls. The advent of advanced computational geometry, in particular the use of Non-Uniform Rational Basis Splines or NURBS, give us the possibility to better represent ”free-form” complex and curved geometry. This presents the opportunity to significantly improve raytracing simulation models. This paper conducts a comparison of simulations done with and without the use of NURBS for concert halls with curved reflective ceilings. Various ceiling configurations and simulation parameters are compared in order to understand the potential of this new possibility.
NURBS and Mesh geometry in Room Acoustic Ray-tracing Simulation / Tomas Mendez; Arianna Astolfi; Mario Sassone; Louena Shtrepi; Arthur van der Harten. - (2013), pp. 2083-2086. ((Intervento presentato al convegno International Conference on Acoustics AIA-DAGA 2013 tenutosi a Meran, Italy nel 18-21 March 2013.
| Titolo: | NURBS and Mesh geometry in Room Acoustic Ray-tracing Simulation | |
| Autori: | ||
| Data di pubblicazione: | 2013 | |
| Abstract: | Room Acoustic Simulation models have been in use for some time now, they are capable of simulatin...g the impulse response of a room, as well as estimate objective parameters. Various benchmarks have been done to evaluate their accuracy in reproducing the impulse response of existing musical spaces. When it comes to simulating sound reflection of curved surfaces, most simulation models depend on the discretization of these surfaces into smaller planar segments. This simplification can be particularly problematic when it comes to the complex curved forms that are now being used in a wide range of acoustic environments, especially in concert and opera halls. The advent of advanced computational geometry, in particular the use of Non-Uniform Rational Basis Splines or NURBS, give us the possibility to better represent ”free-form” complex and curved geometry. This presents the opportunity to significantly improve raytracing simulation models. This paper conducts a comparison of simulations done with and without the use of NURBS for concert halls with curved reflective ceilings. Various ceiling configurations and simulation parameters are compared in order to understand the potential of this new possibility. | |
| ISBN: | 9783939296058 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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| File | Descrizione | Tipologia | Licenza | |
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| 000312 - Tomas.pdf | File già inserito, ma come Pre-print | 2. Post-print / Author's Accepted Manuscript | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia |
http://hdl.handle.net/11583/2507081
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