Filled pauses have important and varied functions in turntaking behavior, and better understanding of this relationship opens new ways for improving the quality and naturalness of dialogue systems. We use a corpus of collaborative task oriented dialogues to provide new insights into the relationship between filled pauses and turn-taking based on temporal and acoustic features. We then explore which of these patterns are stable and robust across speakers, which are prone to entrainment based on conversational partners, and which are variable and noisy. Our findings suggest that intensity is the least stable feature followed by pitch-related features, and temporal features relating filled pauses to chunking and turn-taking are the most stable. Index Terms: filled pauses, turn-taking, speaker variation 1.

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