Project: acoustic correction of a meeting room in an open-plan office with partition windows
Size of environment: 42 m³
Acoustic issue: high reverberation times; low privacy levels
In recent years, workplaces and offices have undergone several transformations in terms of space organisation, favouring open-space layouts often characterised by glass partitions. When the sound wave meets a glass surface, it is reflected in all directions, increasing the noise level in the room. In addition to the issue of acoustic reverberation, this problem can also affect levels of privacy in confidential environments such as meeting or waiting rooms.
The case study refers to an acoustic correction of a meeting room of about 42 m³ with glass perimeter walls. The phonometric analysis showed that the average Tr in an unoccupied room is 1.38 s at an average 250-2000 Hz, which is unsuitable for good sound absorption and privacy.
As can be seen from the graph and the table below, with the insertion of a composition of Nuvola panels measuring 360x120x5, it is possible to achieve an average Tr of 0.65 s with a reduction in sound level of 3.28 dB. What is more, by adding a Menhir sound absorbing totem measuring 40x40x200h, a further improvement can be achieved by bringing the average Tr to 0.50s.
| Reverberation time without panels | Reverberation time with panels |
| 1,38 s | 0,65 s |
The height adjustment system of the fixing cables allows the Nuvola panels to be brought closer to possible sound sources – in this case, the meeting table – and effectively intercept sounds. The versatility of the Menhir free-standing solution makes it easy to move the totem and reposition it as needs change.