Evaluation of acoustical conditions for speech communication in active university classrooms
作者: Young-Ji Choi
作者单位: 1Department of Architectural Engineering, Kangwon National University, 1 Kangwondaehak-gil, Choncheon-si, Kangwon-do 24341, South Korea
刊名: Applied Acoustics, 2020, Vol.159
来源数据库: Elsevier Journal
DOI: 10.1016/j.apacoust.2019.107089
关键词: Speech levelsNoise levelsAcoustical measurementsRecordingsUniversity classroomsUseful-to-detrimental ratioSpeech transmission indexSpeech intelligibility
英文摘要: Abstract(#br)One can measure speech and noise levels separately but then the noise is not the same as experienced during the speech communication in active classrooms. In this study, the acoustical conditions in university classrooms during actual lecturing situations were measured and evaluated based on real recordings of combined speech and noise sounds. Acoustical measurements and recordings were made during actual 15 lectures in 11 university classrooms in Korea. A statistical method was used for obtaining octave band speech and noise levels in university classrooms during actual lectures from the recordings of combined speech and noise sounds. In the 11 active Korean university classrooms the adult students experienced on average: speech levels of 51.5 dBA (s.d. = 2.7 dBA), noise...
全文获取路径: Elsevier  (合作)
影响因子:1.097 (2012)

  • detrimental 损害
  • speech 演说
  • conditions 条件式
  • communication 通信
  • ratio 
  • university 大学
  • acoustical 声的
  • transmission 传送
  • index 指标
  • active 活动的