Analysis and mapping of the indoor acoustic environment in university study spaces

Department of Environmental Engineering, Delhi Technological University, Delhi, India - 110042

^* Corresponding author: rajeevkumarmishra@dtu.ac.in,

Abstract

The university setting significantly impacts the student’s learning and academic achievement. A vital aspect shaping their productivity and well-being within this environment is the indoor soundscape. Different organizations, nationally and internationally, have emphasized the importance of addressing noise-related issues and have established guidelines. This study investigates how indoor soundscapes affect student learning and achievement in university classrooms. The present study analyses noise levels at nine locations during morning, afternoon, and evening study hours using a class 1 sound level meter. Results show noise levels ranging from 49.8 to 77.6 dBA, averaging 66.1 dBA. Over 96% exceeded the ANSI, CPCB noise limit of 50 dBA, with 62.96% surpassing WHO’s 55 dBA standards. Seven of nine locations maintained acceptable noise levels 95% of the time, considering a ±10 dBA fluctuation allowed by CPCB. Libraries and computer labs generally had lower noise, while engineering labs had higher levels due to noisy equipment. This research holds significance for educational institutions, policymakers, and stakeholders in creating conducive learning environments. Understanding prevailing soundscapes informs the design and management of study areas, and helps optimize learning spaces for improved productivity.