Multiple reflections, all of which are frequency dependent, based on the nature of the space, its walls, floor and ceiling ... Larger broadcast studios created their own echo chamber or reverb chamber ...

Fantoni's Nanofor wall-mounted and ceiling-mounted systems ... forming about 4,000 reverberation chambers per m2, offering the most effective sound absorption.

In support of the research activities mentioned above, the Acoustic Laboratory has the following facilities and instrumentation: A Reverberation Chamber of volume 15.4 cu.m (94 cu.ft) with wall ...