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Proceedings Paper

Speaker diarization system on the 2007 NIST rich transcription meeting recognition evaluation
Author(s): Hanwu Sun; Tin Lay Nwe; Eugene Chin Wei Koh; Ma Bin; Haizhou Li
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Paper Abstract

This paper presents a speaker diarization system developed at the Institute for Infocomm Research (I2R) for NIST Rich Transcription 2007 (RT-07) evaluation task. We describe in details our primary approaches for the speaker diarization on the Multiple Distant Microphones (MDM) conditions in conference room scenario. Our proposed system consists of six modules: 1). Least-mean squared (NLMS) adaptive filter for the speaker direction estimate via Time Difference of Arrival (TDOA), 2). An initial speaker clustering via two-stage TDOA histogram distribution quantization approach, 3). Multiple microphone speaker data alignment via GCC-PHAT Time Delay Estimate (TDE) among all the distant microphone channel signals, 4). A speaker clustering algorithm based on GMM modeling approach, 5). Non-speech removal via speech/non-speech verification mechanism and, 6). Silence removal via "Double-Layer Windowing"(DLW) method. We achieves error rate of 31.02% on the 2006 Spring (RT-06s) MDM evaluation task and a competitive overall error rate of 15.32% for the NIST Rich Transcription 2007 (RT-07) MDM evaluation task.

Paper Details

Date Published: 10 September 2007
PDF: 10 pages
Proc. SPIE 6777, Multimedia Systems and Applications X, 67770H (10 September 2007); doi: 10.1117/12.740116
Show Author Affiliations
Hanwu Sun, Institute for Infocomm Research (Singapore)
Tin Lay Nwe, Institute for Infocomm Research (Singapore)
Eugene Chin Wei Koh, Institute for Infocomm Research (Singapore)
Ma Bin, Institute for Infocomm Research (Singapore)
Haizhou Li, Institute for Infocomm Research (Singapore)

Published in SPIE Proceedings Vol. 6777:
Multimedia Systems and Applications X
Susanto Rahardja; JongWon Kim; Jiebo Luo, Editor(s)

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