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Issue:
Sound scattering in room acoustic modeling
Author(s):
JIANG Guorong
Pages:
697
-
700
Year:
2009
Issue:
6
Journal:
Technical Acoustics
Keyword:
room acoustics
;
acoustic modeling
;
sound scattering
;
Abstract:
室内声场模拟中引入扩散反射对提高模拟的准确性具有重要意义,但采用单值散射系数无法完整表示界面的扩散反射特性.受几何声学中扩散反射模拟方法的限制,界面有效散射系数存在不确定性.通过改变一个矩形房间中的吸声量、吸声布置方式及表面几何复杂程度等声场条件,对混响时间的模拟值与实测值进行比较,分析了由界面散射系数不确定性产生的模拟偏差与房间内声场扩散的关系.
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