冲击阻尼板的尺寸辨识与声线索提取

发布时间：2018-03-02 18:34

本文选题：空间维度　切入点：听觉感知　出处：《声学学报》2014年05期 　论文类型：期刊论文

【摘要】：针对冲击板的物理属性辨识问题,研究了尺寸辨识的恒定声线索提取及其在听觉感知中所起的作用。设计并完成了三组主观评价实验,实验1分析了录音和合成声作为声刺激对尺寸辨识的影响。实验2和实验3分别针对铝板和木板的冲击声,通过不相似主观评价实验获得尺寸辨识的感知空间和对应力学空间维度,计算了不同声特征的信息精确度。最后,对比实验2和实验3的结果给出了尺寸辨识的恒定声线索,根据声线索与感知结果的相关性分析了听者的尺寸感知策略。结果表明,听者利用录音和合成声均获得了较好的尺寸辨识结果,且听者趋向于利用与尺寸有关的恒定声线索来完成感知任务,而忽略那些容易受其他声源属性影响的声信息。
[Abstract]:Aiming at the problem of physical attribute identification of impact plate, the constant acoustic cues extraction of dimension identification and its role in auditory perception are studied, and three sets of subjective evaluation experiments are designed and completed. In experiment 1, the effects of sound recording and synthetic sound on dimension identification were analyzed. Experiments 2 and 3 aimed at the impact sound of aluminum plate and board, respectively. The perceptual space and the corresponding mechanical dimension of dimension identification are obtained by the subjective evaluation experiment of dissimilarity, and the information accuracy of different acoustic features is calculated. Finally, the constant acoustic clues of dimension identification are given by comparing the results of experiment 2 and experiment 3. According to the correlation between acoustic cues and perceived results, the size sensing strategies of the listeners are analyzed. The results show that the listeners obtain better size identification results by using both sound recording and synthetic sound. Moreover, listeners tend to use constant acoustic cues related to size to complete their perception tasks, while ignoring the acoustic information that is vulnerable to the effects of other acoustic source attributes.
【作者单位】：西北工业大学航海学院环境工程系;
【基金】：国家自然科学基金(11074202) 西北工业大学博士论文创新基金(cx201233)资助
【分类号】：TN912.3

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