Finite-Difference Time-Domain Simulation of Reverberation in Coupled Rooms

摘要：

The acoustic characteristics of a hall are influenced by the coupling of a room or some rooms to it. In this paper, the influence of the coupling aperture on the sound energy decay and coupling constant in the primary room is investigated by means of the finite-difference time-domain method, and the investigation is limited within the low-frequency range. The results show that,when the volume of the secondary room is 1/3 of that of the primary room, the sound energy decay in the primary room is greatly influenced by the secondary room at an aperture size of less than 10％ of the wall, that the energy decay curve and the coupling constant in the primary room gradually change with the aperture size, and that the effect of the secondary room on the acoustics in the primary room is uniform.

关键词： finite-difference time-domain coupled rooms double-sloped decay coupling constant

作者: 黄坤朋 卢义刚

作者单位: 华南理工大学,物理科学与技术学院,广东,广州,510640

会议类型: 国际会议

会议名称: The 3rd International Symposium on Temporal Design(第三届时间性设计国际研讨会)

会议地点: 广州

会议语种:英文

页码: 32-35

在线出版日期: 2007-11-02（万方平台首次上网日期，不代表论文的发表时间）