On the use of 3d auralisation to evaluate room acoustic enhancement in auditorium restoration

Benedetto Nastasi, Massimiliano Manfren, Francesca Merli, Vincenzo Vodola

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

The acoustic quality in auditorium and concert halls is normally evaluated by the measurements of Impulse responses (monaural, binaural or even MIMO). The subjective evaluation is often obtained by convolving anechoic music with the measured IRs. The psycho-acoustical experiment is achieved using a virtual sound field representation. At the University of Bologna, the listening room Arlecchino includes Ambisonics and stereo dipole techniques for playback. In this paper, two different Italian opera houses and two Japanese concert halls were analysed. They were the Teatro Nuovo in Spoleto (Italy), the Teatro Alighieri in Ravenna (Italy), the Kirishima International Musical Hall in Kagoshima (Japan), and the Tsuyama Musical Cultural Hall in Okayama (Japan). The similarity between real and virtual sound fields, obtained with stereo dipole technique, was evaluated by comparing different acoustic parameters calculated by real and virtual sound fields, in the four halls in different designed configurations. Finally, the stereo dipole technique was added to the ambisonic methodology to reproduce the sound fields for the psycho-acoustical experiment. The dual stereo-dipole technique using two kinds of cross-talk cancelling filters can be one of the solutions for improving the acoustical quality of home theatre.

Original languageEnglish
Title of host publicationProceedings - Building Simulation Applications, BSA 2019
Subtitle of host publication4th IBPSA-Italy Conference
EditorsGiovanni Pernigotto, Francesco Patuzzi, Alessandro Prada, Vincenzo Corrado, Andrea Gasparella
PublisherFree University of Bozen Bolzano
Pages223-230
Number of pages8
ISBN (Electronic)978-88-6046-176-6
Publication statusPublished - 2020
Event4th IBPSA-Italy Conference on Building Simulation Applications, BSA 2019 - Bozen-Bolzano, Italy
Duration: 19 Jun 202021 Jun 2020

Publication series

NameBuilding Simulation Applications
Volume2020-June
ISSN (Electronic)2531-6702

Conference

Conference4th IBPSA-Italy Conference on Building Simulation Applications, BSA 2019
CountryItaly
CityBozen-Bolzano
Period19/06/2021/06/20

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