Speaker
Description
The existence of a diffuse sound field is a fundamental assumption underlying sound absorption measurements in reverberation chambers. Despite decades of research, diffuseness remains complex and challenging to characterize quantitatively. This contribution discusses recent advances in sound field analysis, including array-based characterization techniques, which have substantially improved our understanding of the physical mechanisms governing sound field diffuseness in reverberation chambers. These developments shed new light on the origins of the limited reproducibility of reverberation-chamber sound absorption measurements across laboratories. We present perspectives on the measurement of sound absorption, the future role of reverberation chambers, and the definition and use of absorption parameters in acoustic modeling.