Project Description
Auditorium- Faculty of Technology, University of Kelaniya
The auditorium of the Facility of Technology, University of Kelaniya, Sri Lanka. The primary purpose of the 800-seat capacity is speech and drama. In addition to the primary purposes, the auditorium will be used for events and cultural activities.
Design targets
| Acoustical Parameter | Design Value |
| Reverberation Time (RT) | 1.0 to 1.2 Sec |
| Clarity speech (C50) | 1.0 to 5.0 |
| Clarity for music (C80) | -2.o to 6.0 |
| Speech Transmission Index (STI) | 0.6 to 0.75 |
| Background noise | NC30 (40 dBA) |
Sketchup interior view
T30 Reverberation time
C80 clarity for music
Sound transmission index
Acoustical quality parameters after sound control
| Acoustic Parameter
(Spatial average of 12 receiver points) |
Occupied | Unoccupied | Target Range | Meet the Design Criteria Occupied / Unoccupied |
| Reverberation Time, RT (30)_Average | 1.12 | 1.13 | 1.0 to 1.2 | Yes / Yes |
| Clarity speech (C50)_Average | 4.6 | 4.1 | 1.0 to 5.0 | Yes / Yes |
| Clarity for music (C80)_Average | 7.3 | 6.8 | -1.0 to 8.0 | Yes / Yes |
| Speech Transmission Index (STI) | 0.69 | 0.67 | 0.6 to 0.75 | Yes / Yes |
