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 [BibTeX] [Marc21]
A TDOA Gaussian Mixture Model for Improving Acoustic Source Tracking
Type of publication: Idiap-RR
Citation: Oualil_Idiap-RR-10-2012
Number: Idiap-RR-10-2012
Year: 2012
Month: 3
Institution: Idiap
Abstract: Traditionally, time difference of arrival (TDOA) based acoustic source tracking consists of two stages, more precisely, estimation of TDOAs followed by a tracking algorithm. In general, these two stages are performed separately and presume that (1) TDOAs can be estimated reliably; and (2) the errors in detection behave in a well-defined fashion. The presence of noise and reverberation, however, leads to multimodal TDOA distributions and causes larger errors in the estimates, which ultimately lowers the tracking performance. To counteract this effect, we propose an approach that enhances TDOA estimation by (1) accounting for the multimodal aspect through a Gaussian mixture model and (2) integrating knowledge that has been obtained in the tracking stage. In doing so, this approach tightly couples the two stages. Experimental results on the AV16.3 corpus show that the proposed approach improves the tracking performance significantly compared to various other tracking algorithms.
Keywords: Direction of arrival estimation, Kalman filters, microphone arrays, tracking
Projects FP 7
Authors Oualil, Youssef
Faubel, Friedrich
Magimai.-Doss, Mathew
Klakow, Dietrich
Crossref by Oualil_EUSIPCO_2012
Added by: [ADM]
Total mark: 0
  • Oualil_Idiap-RR-10-2012.pdf (MD5: ac131effd146d5066904ce839b21c6bb)