Skull-shaped antenna enables near-field super-resolution in acoustic source localization using elastic waves

Internal cues such as bone conducted sound (i.e., long signals involving reverberation within the skull) may be beneficial to acoustic source localization in humans. We investigate the potential of bone conduction for human localization in the near field. Following previous work of the authors, we u...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2016-10, Vol.140 (4), p.2959-2959
Main Authors: Reinwald, Michael, Catheline, Stefan, Grimal, Quentin, Boschi, Lapo
Format: Article
Language:English
Online Access:Get full text
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Summary:Internal cues such as bone conducted sound (i.e., long signals involving reverberation within the skull) may be beneficial to acoustic source localization in humans. We investigate the potential of bone conduction for human localization in the near field. Following previous work of the authors, we use a conceptual processing model that translates elastic waves conducted and reverberated in a skull-like object into spatial positioning through a time-reversal analysis. The localization accuracy is tested for one and two piezoelectric receivers glued close to the position of the ears, measuring solely the vibrations of the object. The sound source is placed along the azimuthal and sagittal planes for distances to the skull between 5 and 100 cm. We are able to estimate the source position in the near-field (
ISSN:0001-4966
1520-8524
DOI:10.1121/1.4969137