Title :
Tracking multiple talkers using microphone-array measurements
Author :
Sturim, Douglas E. ; Brandstein, Michael S. ; Silverman, Harvey F.
Author_Institution :
Lab. for Eng. Man/Machine Syst., Brown Univ., Providence, RI, USA
Abstract :
A method for tracking the positional estimates of multiple talkers in the operating region of an acoustic microphone array is presented. Initial talker location estimates are provided by a time-delay-based localization algorithm. These raw estimates are spatially smoothed by a Kalman filter derived from a set of potential source motion models. Data association techniques based on the estimate clusterings and source trajectories are incorporated to match location observations with individual talkers. Experimental results are presented for array recorded data using multiple talkers in a variety of scenarios
Keywords :
Kalman filters; acoustic signal processing; acoustic transducer arrays; acoustic variables measurement; array signal processing; delays; direction-of-arrival estimation; microphones; smoothing methods; tracking; Kalman filter; acoustic microphone array; array recorded data; data association techniques; estimate clusterings; experimental results; location observations; microphone array measurements; multiple talkers tracking; positional estimates; source motion models; source trajectories; talker location estimates; time delay based localization algorithm; Acoustic arrays; Acoustical engineering; Clustering algorithms; Difference equations; Filtering; Laboratories; Microphone arrays; Position measurement; Speech; Systems engineering and theory;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.599650
