New findings show that in, for example, day-care centres and schools for younger grades, it is not only important to reduce the reverberation time, but also to reduce the sound pressure level as a whole.
Seda on kõige parem teha, kasutades võimalikult palju heli neelavaid materjale, mis tähendab, et ka seinad tuleb heli neelamiseks ära kasutada.