Research and optimization of acoustic environment in ordinary classrooms of middle school
A good classroom acoustic environment will contribute to teachers’ health and students’ learning. Comfortable acoustic environment requires suitable reverberation time, sufficient loudness, uniform sound field distribution, high language clarity, and no acoustic defects such as echo and acoustic foc...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2022-01-01
|
| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/23/e3sconf_roomvent2022_02055.pdf |
| _version_ | 1811337714573770752 |
|---|---|
| author | Li Shangzhi Zeng Li Qiu Shuting Sun Hongfa Xiang Zhifeng |
| author_facet | Li Shangzhi Zeng Li Qiu Shuting Sun Hongfa Xiang Zhifeng |
| author_sort | Li Shangzhi |
| collection | DOAJ |
| description | A good classroom acoustic environment will contribute to teachers’ health and students’ learning. Comfortable acoustic environment requires suitable reverberation time, sufficient loudness, uniform sound field distribution, high language clarity, and no acoustic defects such as echo and acoustic focusing. In this study, the optimization strategy of acoustic environment is proposed through the investigation, field testing and numerical simulation analysis of a middle school classroom in Wenzhou under different ventilation conditions. The results show: the key factors affecting the classroom acoustic environment are outdoor activity noise, corridor noise, and classroom teacher-student activity noise. Through optimization, the quality of classroom acoustic environment is improved significantly. Classroom reverberation time (intermediate frequency) decreased from 1.5s to 0.7s; ALC decreased from 9.65% to 4.75%; STI increased from 0.534 to 0.664. The research results provided reference for acoustic design of secondary school classrooms in the future. |
| first_indexed | 2024-04-13T18:00:02Z |
| format | Article |
| id | doaj.art-8e93e57831a743e4a92454f8db17055e |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-04-13T18:00:02Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-8e93e57831a743e4a92454f8db17055e2022-12-22T02:36:18ZengEDP SciencesE3S Web of Conferences2267-12422022-01-013560205510.1051/e3sconf/202235602055e3sconf_roomvent2022_02055Research and optimization of acoustic environment in ordinary classrooms of middle schoolLi Shangzhi0Zeng Li1Qiu Shuting2Sun Hongfa3Xiang Zhifeng4Wenzhou Industrial Design Institute Co., Ltd.Wenzhou Industrial Design Institute Co., Ltd.Wenzhou Industrial Design Institute Co., Ltd.College of Civil Engineering, Xiangtan UniversityWenzhou Design Group Co., Ltd.A good classroom acoustic environment will contribute to teachers’ health and students’ learning. Comfortable acoustic environment requires suitable reverberation time, sufficient loudness, uniform sound field distribution, high language clarity, and no acoustic defects such as echo and acoustic focusing. In this study, the optimization strategy of acoustic environment is proposed through the investigation, field testing and numerical simulation analysis of a middle school classroom in Wenzhou under different ventilation conditions. The results show: the key factors affecting the classroom acoustic environment are outdoor activity noise, corridor noise, and classroom teacher-student activity noise. Through optimization, the quality of classroom acoustic environment is improved significantly. Classroom reverberation time (intermediate frequency) decreased from 1.5s to 0.7s; ALC decreased from 9.65% to 4.75%; STI increased from 0.534 to 0.664. The research results provided reference for acoustic design of secondary school classrooms in the future.https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/23/e3sconf_roomvent2022_02055.pdf |
| spellingShingle | Li Shangzhi Zeng Li Qiu Shuting Sun Hongfa Xiang Zhifeng Research and optimization of acoustic environment in ordinary classrooms of middle school E3S Web of Conferences |
| title | Research and optimization of acoustic environment in ordinary classrooms of middle school |
| title_full | Research and optimization of acoustic environment in ordinary classrooms of middle school |
| title_fullStr | Research and optimization of acoustic environment in ordinary classrooms of middle school |
| title_full_unstemmed | Research and optimization of acoustic environment in ordinary classrooms of middle school |
| title_short | Research and optimization of acoustic environment in ordinary classrooms of middle school |
| title_sort | research and optimization of acoustic environment in ordinary classrooms of middle school |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2022/23/e3sconf_roomvent2022_02055.pdf |
| work_keys_str_mv | AT lishangzhi researchandoptimizationofacousticenvironmentinordinaryclassroomsofmiddleschool AT zengli researchandoptimizationofacousticenvironmentinordinaryclassroomsofmiddleschool AT qiushuting researchandoptimizationofacousticenvironmentinordinaryclassroomsofmiddleschool AT sunhongfa researchandoptimizationofacousticenvironmentinordinaryclassroomsofmiddleschool AT xiangzhifeng researchandoptimizationofacousticenvironmentinordinaryclassroomsofmiddleschool |