Performance of microphone array geometries in a reverberant room

Abstract

AbstractThe choice of sensor positions plays a critical role in determining the performance of a nearfield microphone array used for hands‐free speech acquisition. For a single source in a reverberant room, we propose a performance measure based on the expected reverberant power at the array output, and use the proposed measure to choose the microphone locations. One result of applying the proposed method is that it may be better to distribute the microphones throughout the room rather than placing them together in a single array (as conventional farfield array theory would dictate).