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Diffuse-Field Microphone Sets 
 

Unlike an anechoic chamber, a reverberation chamber is designed with hard, reflective, and non-parallel surfaces, creating a highly reflective environment. This results in a diffuse sound field, where sound waves arrive from all directions with equal energy and probability.

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Real-world conditions that closely resemble diffuse fields include buildings with hard surfaces, or spaces where multiple sound sources are present simultaneously—such as vehicle cabins, churches, or large industrial rooms.

When the acoustic environment is uncertain, it is generally safest to assume a diffuse field to reduce the risk of measurement error. Diffuse-field microphones are best suited for applications like in-cabin noise measurement, building acoustics, and other environments where reflected sound dominates.