Reverberation Formula Which Seems To Be More Accurate with Nonuniform Distribution of Absorption
Reverberation Formula Which Seems To Be More Accurate with Nonuniform Distribution of Absorption
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吸收分布不均匀的混响公式似乎更准确
DOI：
10.1121/1.1907814
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发表时间：
1958
影响因子：
2.4
通讯作者：
Dariel Fitzroy
中科院分区：
文献类型：
--
作者：
Dariel Fitzroy
在吸收不均匀分布的房间中进行的混响测量，通常与基于目前使用的公式的预测相差很大。通过在大量房间中进行的广泛测试，其中吸声分布均匀性变化很大，提出了一个经验推导方程。图形记录器衰减曲线的照片显示了预测斜率的对比，似乎证实了公式的有效性。记录曲线来自于现场试验。所提交的数据是几年来在体积变化很大、边界比变化很大、吸收量和吸收分布比明显不同的房间中积累的测量数据的一小部分。
Reverberation measurements, made in rooms where the absorption is nonuniformly distributed, usually vary widely from predictions based on the currently employed formulas. Through extensive tests made in a large number of rooms, where distribution of sound absorption varies widely in uniformity, an empirically derived equation is submitted. Photographs of graphic recorder decay curves, showing contrasts in predicted slopes, seem to confirm the validity of the formula. The recorder curves are from field tests. The data submitted are a small portion of an accumulation of measurements, covering several years, in rooms of widely varying volumes, widely varying boundary ratios, and marked dissimilarity in amounts of absorption and ratios of absorption distribution.