Wherever people meet, there will be informal meetings. In a typical office this is very common in canteens and breakout spaces. These spaces are often large and can have high soffits. There are often lots of people, noise from tableware and cutlery, and sounds from people talking or walking by.
Most important is to keep the overall sound level from escalating, otherwise people will have to raise their voices significantly, just to be heard. Increased sound levels can also result in sound spreading to areas where people are working at their desks.
Best possible coverage of sound-absorbing elements on ceiling and walls. If adjacent to workspaces, sound absorbing screens are recommended as dividers and to prevent sound propagation. It is also recommended to think about the location of the informal meeting spaces so they are not too close to activities that demand concentration.
Sound level and sound propagation