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Low-Latency Real-Time Meeting Recognition and Understanding Using Distant Microphones and Omni-Directional Camera

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13 Author(s)
Hori, T. ; NTT Commun. Sci. Labs., NTT Corp., Kyoto, Japan ; Araki, S. ; Yoshioka, T. ; Fujimoto, M.
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This paper presents our real-time meeting analyzer for monitoring conversations in an ongoing group meeting. The goal of the system is to recognize automatically “who is speaking what” in an online manner for meeting assistance. Our system continuously captures the utterances and face poses of each speaker using a microphone array and an omni-directional camera positioned at the center of the meeting table. Through a series of advanced audio processing operations, an overlapping speech signal is enhanced and the components are separated into individual speaker's channels. Then the utterances are sequentially transcribed by our speech recognizer with low latency. In parallel with speech recognition, the activity of each participant (e.g., speaking, laughing, watching someone) and the circumstances of the meeting (e.g., topic, activeness, casualness) are detected and displayed on a browser together with the transcripts. In this paper, we describe our techniques and our attempt to achieve the low-latency monitoring of meetings, and we show our experimental results for real-time meeting transcription.

Published in:

Audio, Speech, and Language Processing, IEEE Transactions on  (Volume:20 ,  Issue: 2 )
Biometrics Compendium, IEEE