小房间尺寸“合适比例”量化评估方法的探讨

Discussion of Quantitative Evaluation Method for“Appropriate Proportion”Size in Small Room

为确保小尺度房间低频重放音质,国内外组织与机构、声学专家提出了若干房间尺寸"合适比例"推荐值。长久以来声学工作者一直比较关注的是这些比例究竟"合适"到什么程度,如何选择并用于声学设计中。因此如何进行定量评估这些小房间尺寸"合适比例"就显得十分必要。以一个新的视角,借助互联网和小房间声学计算程序,对上述比例进行重新审视。通过对若干推荐的"合适比例"在不同容积下的计算数据进行统计、分析,得出小房间各种"合适比例"下声染色风险大小的定量评估结果(排序)。此外,还提出如何通过计算寻找新的小房间尺寸"合适比例"的途径,并给出了几种新的"合适比例"计算结果。最后,提出最值得推荐的6种小房间长、宽、高尺寸"合适比例",每种比例至少采用10种以上的房间容积进行计算,并对这些比例的适用条件及相关事项进行了讨论。

To ensure that the small room low frequency playback sound quality, the domestic and foreign organizations, and institutions, acoustics expert proposed several ＂appropriate proportion＂ recommended values. For So Long acoustic workers has been concerned about the acoustics are these proportions exactly the ＂suitable＂ to what extent, and how to se- lect and used in acoustics design. Therefore, how to quantitatively assess these small room size ＂the proper proportion＂ is very necessary. In this paper, a new perspective, through the Internet and the small room acoustics calculation procedures, re-examine the above ratio. Through a number of recommended ＂appropriate proportion＂ computing data at different volume statistics, analysis, the small room all kinds of ＂appropriate scale＂ quantitative risk assessment of the size of the sound stai- ning results （sorting）. In addition, the author also puts forward how to search for a new small room size by calculation way of ＂appropriate proportion＂, and gives several new ＂appropriate proportion＂ calculation resuhs. Finally, the most recom- mended length, width and height of 6 kinds of small room size ＂appropriate proportion＂ are put forward, each proportion at least calculated, using more than 10 kinds of room volume and these ratios of the applicable conditions and related issues are discussed.