Fraunhofer Institute for Building Physics IBP
View into the reverberation chamber at Fraunhofer IBP.
Sound absorption in a reverberation room
Acoustics
| Measurement | Sound absorption coefficient (random sound incidence) |
| Standard | DIN EN ISO 354 |
| Measurement object |
Sound absorbers, suspended ceilings, wall linings, office screens,furniture, seats, panels, textiles, fabrics, noise barriers |
Technical data
| Floor area | 60 m2 |
| Room volume | 392 m3 |
| Entrance door (H x W) | 2,40 m × 2,19 m |
Special features
| Connection to a semi-anechoic room |
Measurement of sound insulation and sound absorption of elements between reverberation and anechoic room |
| Size of the connecting door (measuring surface) | 3,8 m × 2,35 m |
More information
- Area of the test object between 12 m² and max. 18 m², aspect ratio between 0.7 and 1
- Low vibration doors with high sound reduction
- Suppressed excitation of structure-borne sound of the walls due to a special basement