Binaural source localization by joint estimation of ILD and ITD

Authors:
Martin Raspaud;Harald Viste;Gianpaolo Evangelista
Affiliations:
ITN Group, Linköping University, Norrköping, Sweden;Widex A/S, Værløse, Denmark;ITN Group, Linköping University, Norrköping, Sweden
Venue:
IEEE Transactions on Audio, Speech, and Language Processing
Year:
2010

Citing 4
Cited 1

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Abstract

In this paper, we propose a binaural source localization method based on interaural time differences (ITDs) and interaural level differences (ILDs). The two cues, computed from a twochannel time-frequency representation, are combined in order to estimate the azimuth of sources in binaural recording. We introduce an individual parametric model for the ITD and ILD, and an average parametric model that sets us free from measurements of the subjects' HRIRs for sound localization. We conduct several experiments to validate the proposed approach and show that it compares favorably with available techniques.