This research study is an experimental study focusing on auditory perception. The objectives of this research are (1) to evaluate acoustical characteristics of the classroom (2) to assess acoustical perceptions of students with different educational backgrounds. The subjects of this study consisted of 54 science students and 53 art students. The control variable is the Percentage of Absorbing Surface (PAS) inside the classroom. The first procedure of experiment was to simulate a lecture speech from a sound generator, with the adjustment of the sound absorbing surface between five levels of PAS: 0, 7.5, 15f, 15b, and 30. Next, the participants were asked to complete a questionnaire to evaluate their auditory perception according to three main areas: loudness, clearness, perceived reverberation. Then, the results were compared with the outcome from a sound test device. The findings revealed that overall there was no difference between two groups of students in their auditory perceptions. However, when the results according to the different levels of PAS were thoroughly investigated, it was found that the science students rated their auditory perception of loudness and clearness higher than the art students who rated theirs when they were in the room with the PAS above 15%.

中文翻译：

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基于教育背景差异的听觉感知比较分析

本研究是一项专注于听觉感知的实验研究。本研究的目标是 (1) 评估教室的声学特性 (2) 评估具有不同教育背景的学生的声学感知。本研究的对象包括 54 名理科学生和 53 名艺术学生。控制变量是教室内的吸收表面百分比 (PAS)。实验的第一个程序是模拟来自发声器的演讲演讲，在 PAS 的五个级别之间调整吸音面：0、7.5、15f、15b 和 30。接下来，参与者被要求完成一个问卷调查根据三个主要方面来评估他们的听觉感知：响度、清晰度、感知混响。然后，结果与声音测试设备的结果进行了比较。结果显示，总体而言，两组学生的听觉感知没有差异。然而，当对PAS不同级别的结果进行彻底调查时，发现当他们在PAS高于15的房间里时，理科生对响度和清晰度的听觉感知评分高于艺术学生%。