Acoustic Environment in School Classrooms

摘要

Teaching in classrooms with poor acoustics is equivalent to reading a book in a dark place. Good acoustical environment is essential in classrooms especially at school levels. In this paper, the importance of acoustic environments in school classrooms is discussed and the acoustic standards for school classrooms followed in different countries are reviewed. The background noise levels of several classrooms in different locations in an educationally advanced town in India are measured and the details are discussed. The background noise and signal to noise ratio of the classrooms are also presented and discussed. Compared to the acoustic standards, the status in the school classrooms needs improvement and the assessment of signal to noise ratio for different school classrooms are critically analyzed.