中国人群等噪度曲线测量及其应用研究
文献类型：学位论文
| 作者 | 周国柱 |
| 学位类别 | 博士 |
| 答辩日期 | 2009-05-31 |
| 授予单位 | 中国科学院声学研究所 |
| 授予地点 | 声学研究所 |
| 关键词 | 主观评价 噪声评价 低频噪声 等噪度曲线 感觉噪声级 烦恼度 |
| 其他题名 | Measurement of Equal-noisiness Contours of Chinese Speakers and its Application |
| 学位专业 | 声学 |
| 中文摘要 | 随着噪声控制技术的发展和低频噪声污染的加剧，中低强度噪声使人产生的烦恼感逐渐引起人们的关注。然而，目前的物理声学和心理声学客观评价量对噪声主观烦恼度的评价效果都不够理想。为了得到一种适用于评价中国人群对噪声的烦恼度、评价效果比目前常用的声学评价量要好的客观评价量，本文借鉴感觉噪度的概念，探索中国人群感觉噪声级在评价噪声烦恼度方面的应用。为此，文中测量得到了中国人群等噪度曲线，延拓得到中国人群噪度表，并对根据此曲线计算得到的感觉噪度和感觉噪声级进行了研究。本文主要工作如下： （1）测量得到中国人群65PNdB等噪度曲线，并得到中国人群噪度表。本文首先将自适应成对比较法和恒定刺激法实验相结合，测量得到了中国人群65PNdB等噪度曲线。这条曲线比Kryter等噪度曲线在频率范围上向低频扩展了三个1/3倍频带，向高频扩展了1个1/3倍频带。然后根据各个1/3倍频带中感觉噪度随声压级的增长关系，得到了其余的等噪度曲线，并得到中国人群噪度表。根据得到的噪度表，按照现有感觉噪度的计算公式可以计算得到声信号的中国人群感觉噪度和感觉噪声级。 （2）研究了中国人群感觉噪度和感觉噪声级在评价噪声烦恼度方面的应用。本文首先对包含有社会生活噪声、交通运输噪声、工业噪声和建筑施工噪声四类噪声信号、共43个实际信号进行主观烦恼度评价实验；并对此43个信号都计算得到中国人群感觉噪声级、Kryter感觉噪声级、A声级、有调度、粗糙度等20个客观评价量。然后根据主观实验得到的烦恼度数值，通过相关分析和回归分析得出这些客观评价量在评价噪声烦恼度方面的相对优劣。根据分析结果，无论用于对全部43个信号的烦恼度进行评价，还是用于单独对社会生活噪声的烦恼度进行评价，中国人群感觉噪声级在全部20个客观评价量中具有最好的评价效果。 |
| 英文摘要 | Along with the development of noise control technique and the aggravation of low frequency noise pollution, the annoyance due to noise with low or moderate sound level gradually draws people’s attention. However, the available objective psychical-acoustics and psychoacoustics indices couldn’t meet the requirement of assessing the annoyance of noise. In order to get an objective index that could apply to evaluate Chinese people’ annoyance due to noise and have a better evaluation result than the available objective indices, the application of perceived noise level of Chinese speakers in noise evaluation are explored, taking the definition of Perceived Noisiness proposed by Kryter as reference. For this purpose, the equal-noisiness contours of Chinese speakers have been measured, and the noisiness table has also been obtained; Furthermore, the perceived noisiness and perceived noise level of Chinese speakers are studied in this dissertation. The main contents of this thesis are as follows: (1) The 65PNdB contour of Chinese speakers was measured, and entended to get the noisiness table of Chinese speakers. At the beginning, the 65PNdB contour of Chinese speakers was measured by an Adaptive Paired Comparison experiment and a Constant Stimulus experiment which were both subjective assessment experiments. Compared with the contour measured by Kryter, this contour extends three 1/3 octave bands to the low frequency and one 1/3 octave band to the high frequency, in the frequency domain. Then, according the relationship between the perceived nosiness and sound pressure level in each 1/3 octave bands, other equal-noisiness contours and a table of noy values as a function of sound pressure level for a variety of 1/3 octave band center frequencies which was called the noisiness table of Chinese speakers were got. Based on the table, the perceived noisiness and perceived noise level of Chinese speakers could be calculated by the formula derived by Kryter. (2) The application of perceived noisiness and perceived noise level of Chinese speakers in evaluating Chinese people’s annoyance due to noise has been studied. In the first instance, an experiment was carried out to assess the degree of annoyance due to actual noise samples. There were 43 real environmental noise samples used in the experiment, including community noise, traffic noise, industrial noise and construction noise. The annoyance due to these samples was measured. Meanwhile, 20 objective indices were calculated for each of these samples. These objective indices included the perceived noise level of Chinese speakers, Kryter’s perceived noise level, A-weighting sound level, tonality, roughness, and so on. Then, the relative applicability of these objective indices for annoyance assessment was studied by correlation analysis and regression analysis. According the analysis results, for the total 43 samples or for community noise alone, the perceived noise level of Chinese speakers is the best index for assessing the annoyance in the 20 objective indices. |
| 语种 | 中文 |
| 公开日期 | 2011-05-07 |
| 页码 | 127 |
| 源URL | [http://159.226.59.140/handle/311008/538]  |
| 专题 | 声学研究所_声学所博硕士学位论文_1981-2009博硕士学位论文 |
| 推荐引用方式 GB/T 7714 | 周国柱. 中国人群等噪度曲线测量及其应用研究[D]. 声学研究所. 中国科学院声学研究所. 2009. |
入库方式： OAI收割
来源：声学研究所
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