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 [BibTeX] [Marc21]
A Probabilistic Framework for Multiple Speaker Localization
Type of publication: Conference paper
Citation: Oualil_ICASSP2013_2013
Publication status: Published
Booktitle: Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
Year: 2013
Month: May
Crossref: Oualil_Idiap-RR-37-2012:
Abstract: This paper presents a novel probabilistic framework for localizing multiple speakers with a microphone array. In this framework, the generalized cross correlation function (GCC) of each microphone pair is interpreted as a probability distribution of the time difference of arrival (TDOA) and subsequently approximated as a Gaussian mixture. The distribution parameters are estimated with a weighted expectation maximization algorithm. Then, the joint distribution of the TDOA Gaussian mixtures is mapped to a multimodal distribution in the location space, where each mode represents a potential source location. The approach taken here performs the localization by 1) reducing the search space to some regions that are likely to contain a source and then 2) extracting the actual speaker locations with a numerical optimization algorithm. The effectiveness of the proposed approach is shown using the AV16.3 corpus.
Keywords:
Projects Idiap
IM2
FP 7
Authors Oualil, Youssef
Magimai.-Doss, Mathew
Faubel, Friedrich
Klakow, Dietrich
Added by: [UNK]
Total mark: 0
Attachments
  • Oualil_ICASSP2013_2013.pdf
Notes