Article details

Research area

Conference: Acoustics, Speech and Signal Processing, 2008. ICASSP 2008. IEEE International Conference


Fabio Castaldo, Daniele Colibro, Emanuele Dalmasso, Pietro Laface, Claudio Vair

Stream-based speaker segmentation using speaker factors and eigenvoices


This paper presents a stream-based approach for unsupervised multi-speaker conversational speech segmentation. The main idea of this work is to exploit prior knowledge about the speaker space to find a low dimensional vector of speaker factors that summarize the salient speaker characteristics. This new approach produces segmentation error rates that are better than the state of the art ones reported in our previous work on the segmentation task in the NIST 2000 Speaker Recognition Evaluation (SRE). We also show how the performance of a speaker recognition system in the core test of the 2006 NIST SRE is affected, comparing the results obtained using single speaker and automatically segmented test data.

Read/download now