Robust Source Localization in Reverberant Environments Based on Weighted Fuzzy Clustering
|dc.identifier.citation||Kuhne, M. and Togneri, R. and Nordholm, Sven. 2009. Robust Source Localization in Reverberant Environments Based on Weighted Fuzzy Clustering. IEEE Signal Processing Letters 16 (2): pp. 85-88.|
Successful localization of sound sources in reverberant enclosures is an important prerequisite for many spatial signal processing algorithms. We investigate the use of a weighted fuzzy-means cluster algorithm for robust source localization using location cues extracted from a microphone array. In orderto increase the algorithm's robustness against sound reflections, we incorporate observation weights to emphasize reliable cues over unreliable ones. The weights are computed from local feature statistics around sound onsets because it is known that these regions are least affected by reverberation. Experimental results illustrate the superiority of the method when compared with standard fuzzy clustering. The proposed algorithm successfully located two speech sources for a range of angular separations in room environments with reverberation times of up to 600 ms.
|dc.publisher||IEEE Signal Processing Society|
|dc.subject||- source localization|
|dc.title||Robust Source Localization in Reverberant Environments Based on Weighted Fuzzy Clustering|
|dcterms.source.title||IEEE Signal Processing Letters|
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|curtin.faculty||Department of Electrical and Computer Engineering|
|curtin.faculty||School of Engineering|
|curtin.faculty||Faculty of Science and Engineering|