TY - GEN
T1 - Acoustical and electroacoustical process for improving a multi-purpose sports stadium
AU - Lee, Yu Ting
AU - Tsay, Yaw Shyan
N1 - Funding Information:
The authors would like to thank Wang, Yang and Ma for help with the measurements and simulation and NCKU for its financial support.
Publisher Copyright:
© INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering. All Rights Reserved.
PY - 2019
Y1 - 2019
N2 - Multi-purpose sports stadiums have become an efficient and cost-effective solution for accommodating both speeches and musical performances. Particularly at universities, stadiums tend to be used not only for sporting events but also for ceremonies and other extracurricular activities. However, the expansive space of stadiums often results in a long reverberation time and thus causes problems with acoustics. In this study, we selected a university stadium to carry out a case study of a practical process for improving acoustics. We utilized field measurements to diagnose current performance and found that reverberation time was quite large. We performed a simulation with ODEON software and compared the results with the field measurements to verify the boundary conditions. Afterwards, we simulated design strategies based on both architectural acoustics and electroacoustics for evaluation. We found that a curve-shaped ceiling for MPP can reduce the reverberation time to approximately 2 seconds (unoccupied). Furthermore, various acoustic parameters, including SPL(A), C80, and STI, were improved via the electroacoustics process. Both the uniformity and the clarity of sound distribution were expected to be significantly improved for speeches by arranging the position and angle of the speakers.
AB - Multi-purpose sports stadiums have become an efficient and cost-effective solution for accommodating both speeches and musical performances. Particularly at universities, stadiums tend to be used not only for sporting events but also for ceremonies and other extracurricular activities. However, the expansive space of stadiums often results in a long reverberation time and thus causes problems with acoustics. In this study, we selected a university stadium to carry out a case study of a practical process for improving acoustics. We utilized field measurements to diagnose current performance and found that reverberation time was quite large. We performed a simulation with ODEON software and compared the results with the field measurements to verify the boundary conditions. Afterwards, we simulated design strategies based on both architectural acoustics and electroacoustics for evaluation. We found that a curve-shaped ceiling for MPP can reduce the reverberation time to approximately 2 seconds (unoccupied). Furthermore, various acoustic parameters, including SPL(A), C80, and STI, were improved via the electroacoustics process. Both the uniformity and the clarity of sound distribution were expected to be significantly improved for speeches by arranging the position and angle of the speakers.
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M3 - Conference contribution
AN - SCOPUS:85084161860
T3 - INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering
BT - INTER-NOISE 2019 MADRID - 48th International Congress and Exhibition on Noise Control Engineering
A2 - Calvo-Manzano, Antonio
A2 - Delgado, Ana
A2 - Perez-Lopez, Antonio
A2 - Santiago, Jose Salvador
PB - SOCIEDAD ESPANOLA DE ACUSTICA - Spanish Acoustical Society, SEA
T2 - 48th International Congress and Exhibition on Noise Control Engineering, INTER-NOISE 2019 MADRID
Y2 - 16 June 2019 through 19 June 2019
ER -