Speaker identification and speech recognition using phased arrays

Roger Xu

Gang Mei

ZuBing Ren

Chiman Kwan

Julien Aube

Cedrick Rochet

Vincent Stanford

pp. 227-238

in: Yang Cai, Julio Abascal (eds), Ambient intelligence in everyday life, Berlin, Springer, 2006

Abstract

We summarize our research results on an innovative approach to making smart meeting rooms accessible to hands-free users. Specifically, we developed an autodirective system to acquire speech in a noisy room using a microphone array, and to identify the speech from a privileged speaker among others in real time. We successfully established that a commercial speaker-dependent speech recognition product could recognize beamformed speech acquired using our autodirective algorithm. We used the NIST Smart Flow System and the Mk-III microphone array developed by the National Institute of Standards and Technology to conduct our experiments.