Exploiting intra-conversation variability for speaker diarization
Stephen H. Shum, Najim Dehak, Ekapol Chuangsuwanich, Douglas A. Reynolds, James Glass · 2011
In this paper, we propose a new approach to speaker diariza-tion based on the Total Variability approach to speaker verifica-tion. Drawing on previous work done in applying factor anal-ysis priors to the diarization problem, we arrive at a simplified approach that exploits intra-conversation variability in the To-tal Variability space through the use of Principal Component Analysis (PCA). Using our proposed methods, we demonstrate the ability to achieve state-of-the-art performance (0.9 % DER) in the diarization of summed-channel telephone data from the NIST 2008 SRE.