| 早期声在厅堂中的分布 |
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| 引用本文： | 蒋国荣, 王季卿. 早期声在厅堂中的分布[J]. 声学学报, 2000, 25(3): 193-200. DOI: 10.15949/j.cnki.0371-0025.2000.03.001 |
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| 作者姓名： | 蒋国荣 王季卿 |
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| 作者单位： | 1.同济大学声学研究所 上海 200092 |
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| 摘 要： | 厅堂内早期反射声能分布与厅堂的容积、体形、吸声布置及接收点的位置等有关,其形成的早期声场与完全扩散声场有较大的差别。因而有关与早期反射声能相关的音质参量在厅堂中的分布情况无法用扩散场的理论来预计。本文通过对四个厅的测量结果,来分析早期反射声能在厅堂中分布的特性。
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| 收稿时间： | 1998-12-21 |
| 修稿时间： | 1999-05-28 |
The distribution of early reflections in hall |
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| JIANG Guorong, WANG Jiqing. The distribution of early reflections in hall[J]. ACTA ACUSTICA, 2000, 25(3): 193-200. DOI: 10.15949/j.cnki.0371-0025.2000.03.001 |
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| Authors: | JIANG Guorong WANG Jiqing |
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| Affiliation: | 1.Institute of Acoustics, Tongji University Shanghai 200092 |
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| Abstract: | The early sound levels in the audience area of an auditorium are significantly effected by the room geometry,the arrangement of absorption treatment and the location of the receiver.The early sound field is non-statistic,different from diffused sound field,therefore it can not be predicted by the diffused field theory.This paper presents the result of measurements in four halls showing the attenuation rate of early sound level with the distance between source and receiver is much larger than the theoretical prediction. |
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