Anechoic room

The NCPA Build 2 Jet Rig, when utilized in the NCPA anechoic room, permits operation at full-scale pressures and temperatures associated with the FCLP, has exact-scaled internal and external geometry, and can be used to acquire far-field acoustic data along with flow-field data acquired by stereo Particle... 

Anechoic room room whose boundaries effectively absorb all incident sound over the frequency range of interest, thereby creating essentially free field conditions. 

BS 4196, Part 5, Precision methods for determination of sound power levels for sources in unechoic and semi-anechoic rooms, 1981. 

Anechoic A room that has a low degree of acoustic reverberation, such as an anechoic test chamber. 

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