TY - GEN
T1 - On the use of 3d auralisation to evaluate room acoustic enhancement in auditorium restoration
AU - Nastasi, Benedetto
AU - Manfren, Massimiliano
AU - Merli, Francesca
AU - Vodola, Vincenzo
PY - 2020
Y1 - 2020
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85090822623&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85090822623
T3 - Building Simulation Applications
SP - 223
EP - 230
BT - Proceedings - Building Simulation Applications, BSA 2019
A2 - Pernigotto, Giovanni
A2 - Patuzzi, Francesco
A2 - Prada, Alessandro
A2 - Corrado, Vincenzo
A2 - Gasparella, Andrea
PB - Free University of Bozen Bolzano
T2 - 4th IBPSA-Italy Conference on Building Simulation Applications, BSA 2019
Y2 - 19 June 2020 through 21 June 2020
ER -