How does acoustics affect classrooms and meeting rooms?
This question is less common, but now known to be a significant factor in modern public education. Basically, the degree that we hear well in a room depends on the background noise level and the reverberation of sound in that room. An example of a good listening environment is outdoors in a quiet back yard in the country . Here, the background noise level can be as low as 35 dBA and the reverberation time will be a tiny fraction of a second, if any. A class or meeting of 20 to 30 persons will proceed quite well, the group acting in harmony most if not all of the time. Repartee vital to learning can be rapid and 2-way. /////recompose the following The weak point for sound transmission to and from a building is most often via the windows. Double glazing will usually afford noticeably better protection than single glazing, but in areas of high external noise it might be preferable to have double windows with a large air gap (25 to 100 mm) and acoustic absorbent material on the perimeter r
