车辆噪声烦恼度的音色表达

烦恼度作为评价噪声对人影响的重要指标,受到广泛重视并获得应用。通过主观评价实验和数据统计分析,从音色角度对城市典型车辆噪声烦恼度进行建模并给予物理解释。研究发现:(1)车辆噪声烦恼度音色空间由四个维度构成;(2)利用多元线性回归方法给出的车辆噪声烦恼度模型与声样本烦恼度拟合较好;(3)烦恼度空间维度与特定频谱特性具有较高的相关性。研究结果为车辆噪声烦恼度建模及降噪设计提供了新的思路。 

Timbre representation of vehicle noise annoyance

As an important indicator to evaluate the influences of noises on human, annoyance has been a hot topic in the field of acoustics and environmental science. The annoyance of traffic noise is modeled from the perspective of timbre attributes, and the physical interpretation of annoyance dimensions is given. The results indicate that (1) the timbre space of traffic noise annoyance is consisted of four dimensions, (2) the obtained model for annoyance computation based on linear regression approach is good agreement with the sound samples, and (3) the annoyance dimensionality correlates well with certain spectral characteristics of the noise signals. The results offer suggestions on annoyance modeling and noise control.