Optimizing acoustic contract control target for sound zones in an enclosed space

Abstract

Acoustic contrast control is fundamental to achieving the highest sound energy difference between listening and quiet zones within a space. While extensively studied in simulations and laboratories, its real-world application has been confined to engineered applications, for example, acoustically treated rooms. However, for a broader application, we notice significant degradation in acoustic contrast performance from the laboratory prototype to the actual room application. To mitigate this disparity, we propose a physically optimized target to enhance room acoustic contrast control. The proposed method is evaluated by offline simulations using real-world room impulse responses.