Binaural spatialisation over a bone conduction headset: The perception of elevation
Date
2019
Authors
Barde, A.
Lindeman, R.W.
Lee, G.
Billinghurst, M.
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Journal Title
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Conference paper
Citation
Proceedings of the AES International Conference, 2019, iss.3, pp.1-11
Statement of Responsibility
Conference Name
2019 AES International Conference on Headphone Technology (27 Aug 2019 - 29 Aug 2019 : San Francisco, US)
Abstract
Binaural spatialisation over a bone conduction headset in the vertical plane was investigated using inexpensive and commercially available hardware and software components. The aim of the study was to assess the acuity of binaurally spatialised presentations in the vertical plane. The level of externalisation achievable was also explored. Results demonstrate good correlation between established perceptual traits for headphone based auditory localisation using non-individualised HRTFs, though localisation accuracy appears to be significant worse. A distinct pattern of compressed localisation judgements is observed with participants tending to localise the presented stimulus within an approximately 20° range on either side of the inter-aural plane. Localisation error was approximately 21° in the vertical plane. Participants reported a good level of externalisation. We've been able to demonstrate an acceptable level of spatial resolution and externalisation is achievable using an inexpensive bone conduction headset and software components.
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Copyright 2019 Audio Engineering Society