关键词：对话分析；麦克风阵列系统；普适计算
摘 要：Understanding and facilitating real-life social interaction is a high-impact goal for ubiquitous computing research. Microphone arrays offer the unique capability to provide continuous, calm capture of verbal interaction in large physical spaces, such as homes and especially open-plan offices. Most microphone array work has focused on arrays of custom sensors in small spaces, and a few recent works have tested small arrays of commodity sensors in single rooms. This thesis describes the first working scalable and cost-effective array infrastructure that offers highprecision localization of conversational speech, and hence enables ongoing studies of verbal interactions in large semi-structured spaces.