Improvement of Zwicker's psychoacoustic annoyance model aiming at tonal noises
Improvement of Zwicker's psychoacoustic annoyance model aiming at tonal noises
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DOI：
10.1016/j.apacoust.2015.12.006
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发表时间：
2016-04-01
影响因子：
3.4
通讯作者：
Pei, Chun-Ming
中科院分区：
文献类型：
--
作者：
Di, Guo-Qing;Chen, Xing-Wang;Pei, Chun-Ming
根据噪声样本的4个声学参数（即，响度、尖锐度、波动强度和粗糙度），Zwicker的心理声学烦恼度模型可用于估计噪声烦恼度的相对程度。然而，该模型不能很好地应用于比较音调噪声和无音调噪声的烦恼度。为了提高其对音调噪声的估计效果，随机选取了3组噪声样本，27个由1000 kV Transformer引起的低频音调噪声样本，A计权等效声压级范围为41.2 dBA至73.0 dBA; 30个低频、中频或高频音调/无调噪声样本，响度级范围为60 phon至80 phon;及其他60个A计权等效声压级介乎40.7 dBA至75.0 dBA的噪音样本。实验室听力测试采用11点数字量表，分别对上述3个样本组进行。对Zwicker的心理声学烦恼度模型进行了改进，引入音调因素，并引入第一组噪声样本（1000 kV Transformer噪声样本）的评价结果确定模型中的系数。另外两组的评估结果以及220 kV/500 kV Transformer噪声烦恼度研究的数据验证了改进模型的适用性。结果表明，改进后的模型能更准确地估计出各种音调/无音调噪声引起的相对烦恼度。(C)2015爱思唯尔有限公司版权所有。
According to 4 acoustical parameters of noise samples (i.e., loudness, sharpness, fluctuation strength and roughness), Zwicker's psychoacoustic annoyance model can be used to estimate the relative degree of noise annoyance. However, this model cannot be well applied to compare the annoyance degrees of tonal noises and atonal noises. In order to improve its estimation effect on tonal noises, 3 groups of noise samples were selected randomly, i.e., 27 low-frequency tonal noise samples induced by a 1000 kV transformer with A-weighted equivalent sound pressure levels ranging from 41.2 dBA to 73.0 dBA; 30 low-, mid- or high-frequency tonal/atonal noise samples with loudness levels ranging from 60 phon to 80 phon; and 60 other noise samples with A-weighted equivalent sound pressure levels ranging from 40.7 dBA to 75.0 dBA. Laboratory listening tests were conducted on the above 3 sample groups respectively via an 11-point numerical scale. The Zwicker's psychoacoustic annoyance model was improved by taking tonality into account, and introducing the evaluation result of the first noise sample group (1000 kV transformer noise samples) to determine the coefficients in the model. The applicability "of the improved model was examined by the evaluation results of the other two groups as well as the data in a previous research on annoyance of 220 kV/500 kV transformer noises. Results show that the improved model can estimate the relative annoyance degrees caused by various types of tonal/atonal noises much more accurately. (C) 2015 Elsevier Ltd. All rights reserved.