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Fast Sound Source Localization Using Two-Level Search Space Clustering

Authors
Yook, DongsukLee, TaewooCho, Youngkyu
Issue Date
1월-2016
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
Search space clustering (SSC); sound source localization (SSL); steered response power phase transform (SRP-PHAT)
Citation
IEEE TRANSACTIONS ON CYBERNETICS, v.46, no.1, pp.20 - 26
Indexed
SCIE
SCOPUS
Journal Title
IEEE TRANSACTIONS ON CYBERNETICS
Volume
46
Number
1
Start Page
20
End Page
26
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/90010
DOI
10.1109/TCYB.2015.2391252
ISSN
2168-2267
Abstract
Steered response power phase transform (SRP-PHAT) is a method that is widely used for robust sound source localization (SSL). However, since SRP-PHAT searches over a large number of candidate locations, it is too slow to run in real-time for large-scale microphone array systems. In this paper, we propose a robust two-level search space clustering method to speed-up SRP-PHAT-based SSL. The proposed method divides the candidate locations of the sound source into a set of groups and finds a small number of groups that are likely to contain the maximum power location. By searching within the small number of groups, the computational costs are reduced by 61.8% compared to a previously proposed method without loss of accuracy.
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