Tissue-conducted spatial sound fields

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McKenzie, I., Lennox, Peter and Wiggins, Bruce 2014. Tissue-conducted spatial sound fields. Institute of Acoustics.
AuthorsMcKenzie, I., Lennox, Peter and Wiggins, Bruce
Abstract

We describe experiments using multiple cranial transducers to achieve auditory spatial perceptual impressions via bone (BC) and tissue conduction (TC), bypassing the peripheral hearing apparatus. This could be useful in cases of peripheral hearing damage or where ear-occlusion is undesirable. Previous work (e.g. Stanley and Walker 2006, MacDonald and Letowski 2006)1,2 indicated robust lateralization is feasible via tissue conduction. We have utilized discrete signals, stereo and first order ambisonics to investigate control of externalization, range, direction in azimuth and elevation, movement and spaciousness. Early results indicate robust and coherent effects. Current technological implementations are presented and potential development paths discussed.

We describe experiments using multiple cranial transducers to achieve auditory spatial perceptual impressions via bone (BC) and tissue conduction (TC), bypassing the peripheral hearing apparatus. This could be useful in cases of peripheral hearing damage or where ear-occlusion is undesirable. Previous work (e.g. Stanley and Walker 2006, MacDonald and Letowski 2006)1,2 indicated robust lateralization is feasible via tissue conduction. We have utilized discrete signals, stereo and first order ambisonics to investigate control of externalization, range, direction in azimuth and elevation, movement and spaciousness. Early results indicate robust and coherent effects. Current technological implementations are presented and potential development paths discussed.

KeywordsBone conduction; Surround sound; Ambisonics; Tissue conduction; 3D sound; Binaural
Year2014
PublisherInstitute of Acoustics
Web address (URL)http://hdl.handle.net/10545/333590
hdl:10545/333590
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Publication dates14 Oct 2014
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Deposited03 Nov 2014, 14:19
ContributorsUniversity of Derby
JournalProceedings of the Institute of Acoustics, Vol 36, Pt 2.
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https://repository.derby.ac.uk/item/92w3x/tissue-conducted-spatial-sound-fields

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