| Abstract: | For speech to be intelligible in classrooms, the reverberation time of sound should be reasonably short, allowing for the sound intensity required for the absorption characteristics. This optimum reverberation time is, in turn, related to the volume of the room and the degree of occupancy. Following field measurements in different types of schools in Egypt, the optimum ratios for local circumstances are suggested by a member of the Acoustics Department of the Building Research Centre at Dokky, Cairo. |
