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An Energy Model for the Calculation of Room Acoustic Parameters in Rectangular Rooms with Absorbent Ceilings
Article

Coherent Image Source Modeling of Sound Fields in Long Spaces with a Sound-Absorbing Ceiling

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Key Laboratory of Urban and Architectural Heritage Conservation, Ministry of Education, School of Architecture, Southeast University, 2 Sipailou, Nanjing 210096, China
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Author to whom correspondence should be addressed.
This paper is an extension of a conference paper presented in INTER-NOISE 2014.
Academic Editors: Stavroulakis Georgios, Massimo Garai and Nikolaos M. Papadakis
Appl. Sci. 2021, 11(15), 6743; https://doi.org/10.3390/app11156743
Received: 29 June 2021 / Revised: 19 July 2021 / Accepted: 21 July 2021 / Published: 22 July 2021
(This article belongs to the Special Issue Advances in Architectural Acoustics)
Sound-absorbing boundaries can attenuate noise propagation in practical long spaces, but fast and accurate sound field modeling in this situation is still difficult. This paper presents a coherent image source model for simple yet accurate prediction of the sound field in long enclosures with a sound absorbing ceiling. In the proposed model, the reflections on the absorbent boundary are separated from those on reflective ones during evaluating reflection coefficients. The model is compared with the classic wave theory, an existing coherent image source model and a scale-model experiment. The results show that the proposed model provides remarkable accuracy advantage over the existing models yet is fast for sound prediction in long spaces. View Full-Text
Keywords: long space; coherent image source method; sound-absorbing boundary; sound field modeling; scale-model experiment long space; coherent image source method; sound-absorbing boundary; sound field modeling; scale-model experiment
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MDPI and ACS Style

Min, H.; Xu, K. Coherent Image Source Modeling of Sound Fields in Long Spaces with a Sound-Absorbing Ceiling. Appl. Sci. 2021, 11, 6743. https://doi.org/10.3390/app11156743

AMA Style

Min H, Xu K. Coherent Image Source Modeling of Sound Fields in Long Spaces with a Sound-Absorbing Ceiling. Applied Sciences. 2021; 11(15):6743. https://doi.org/10.3390/app11156743

Chicago/Turabian Style

Min, Hequn, and Ke Xu. 2021. "Coherent Image Source Modeling of Sound Fields in Long Spaces with a Sound-Absorbing Ceiling" Applied Sciences 11, no. 15: 6743. https://doi.org/10.3390/app11156743

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