Room having a long reverberation time, specially designed to make the sound field therein as diffuse as possible.
ISO 354 Acoustics/Measurement of Sound Absorption in a Reverberation Room
ISO 3741:1999, Acoustics - Determination of sound power levels of noise sources - Precision methods for broad-band sources in reverberation room.
ISO 3741 Determination of Sound Power Levels of Noise Sources - Precision Methods for Broad-Band Sources in Reverberation Rooms
ISO 3742 Determination of Sound Power Levels of Noise Sources - Precision Methods for Discrete-Frequency and Narrow- Band Sources in Reverberation Rooms
ANSI S12.32 Determination of Sound Power Levels of Discrete-Frequency and Narrow-Band Noise Sources in Reverberation Rooms
ASTM C 423 Standard test method for sound absorption and sound absorption coefficients by the reverberation room method.