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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。
According to the physical property identification of impact plate, constant acoustic clues extraction of size recognition and its role in auditory perception are studied. Three sets of subjective evaluation experiments were designed and completed. Experiment 1 analyzed the effect of sound recording and synthesized sound on sizing as acoustic stimulus. Experiment 2 and Experiment 3, respectively, for the sound of aluminum and wood impact, through subjective evaluation experiment to obtain the size of the perception of space-dimensional recognition and corresponding space dimensions, calculated the accuracy of information of different acoustic features. Finally, we compare the results of experiment 2 and experiment 3 to find the constant cues of size recognition, and analyze the size-sensing strategy of the listeners according to the correlation between the acoustic cues and the perception results. The results show that the listener achieves good size recognition using both recorded and synthesized sound, and the listener tends to use the constant size cues to accomplish the sensing task, ignoring the sounds easily affected by other sound source attributes information.