192555
20190125163139.0
CONF
A Probabilistic Framework for Multiple Speaker Localization
2013
2013
Conference Papers
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.
Oualil, Youssef
Magimai.-Doss, Mathew
127186
243959
Faubel, Friedrich
Klakow, Dietrich
Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
Related documents
http://publications.idiap.ch/index.php/publications/showcite/Oualil_Idiap-RR-37-2012
LIDIAP
252189
U10381
oai:infoscience.tind.io:192555
STI
conf
EPFL-CONF-192555
Oualil_ICASSP2013_2013/LIDIAP
EPFL
CONF