Department of Sound and Acoustic Engineering, Universidad de Las Américas, Quito EC170125, Ecuador.
Laboratory of Acoustic Engineering, Universidad de Cádiz, 11510 Puerto Real, Spain.
Int J Environ Res Public Health. 2022 Dec 30;20(1):709. doi: 10.3390/ijerph20010709.
The acoustic environment has been pointed out as a possible distractor during student activities in the online academic modality; however, it has not been specifically studied, nor has it been studied in relation to parameters frequently used in academic-quality evaluations. The objective of this study is to characterize the acoustic environment and relate it to students' satisfaction with the online learning modality. For that, three artificial neural networks were calculated, using as target variables the students' satisfaction and the noise interference with autonomous and synchronous activities, using acoustic variables as predictors. The data were obtained during the COVID-19 lockdown, through an online survey addressed to the students of the Universidad de Las Américas (Quito, Ecuador). Results show that the noise interference with comprehensive reading or with making exams and that the frequency of noises, which made the students lose track of the lesson, were relevant factors for students' satisfaction. The perceived loudness also had a remarkable influence on engaging in autonomous and synchronous activities. The performance of the models on students' satisfaction and on the noise interference with autonomous and synchronous activities was satisfactory given that it was built only with acoustic variables, with correlation coefficients of 0.567, 0.853, and 0.865, respectively.
声环境已被指出可能会分散学生在在线学术模式下的注意力;然而,它尚未被专门研究,也没有与学术质量评估中常用的参数相关联进行研究。本研究的目的是描述声环境,并将其与学生对在线学习模式的满意度联系起来。为此,使用作为预测变量的声学变量,计算了三个人工神经网络,将学生对自主和同步活动的满意度和噪声干扰作为目标变量。数据是在 COVID-19 封锁期间通过在线调查获得的,调查对象是厄瓜多尔基多的美洲大学的学生。结果表明,全面阅读或考试时的噪声干扰以及使学生失去课程注意力的噪声频率是学生满意度的相关因素。感知到的响度对自主和同步活动也有显著影响。鉴于仅使用声学变量构建了模型,因此学生满意度和自主及同步活动噪声干扰模型的性能令人满意,相关系数分别为 0.567、0.853 和 0.865。