Title:
Investigation of the effect of impedance on azimuth cues derived from spherical head models

dc.contributor.author Treeby, B. E.
dc.contributor.author Paurobally, R. M.
dc.contributor.author Pan, J.
dc.contributor.corporatename International Community for Auditory Display
dc.contributor.corporatename University of Western Australia. School of Mechanical Engineering. Centre for Acoustics, Dynamics and Vibration
dc.date.accessioned 2014-01-17T02:32:51Z
dc.date.available 2014-01-17T02:32:51Z
dc.date.issued 2006-06
dc.description Presented at the 12th International Conference on Auditory Display (ICAD), London, UK, June 20-23, 2006. en_US
dc.description Presented at the 12th International Conference on Auditory Display (ICAD), London, UK, June 20-23, 2006.
dc.description.abstract Recent implementations of virtual sound using head related transfer functions often include an analytical low frequency diffraction model to reproduce stable azimuth cues which are independent of the quality and accuracy of high frequency pinnae data. This paper investigates the previously neglected effects of surface acoustic impedance on the salient azimuth cues produced by a single sphere diffraction model. Results indicate an increase in interaural level difference with both a decreasing impedance magnitude and an increasingly negative impedance phase component. The interaural time difference appears to be less sensitive to impedance changes although an increase is evident with a decreasing impedance magnitude, particularly for sources near the interaural axis. These changes produce offset interaural cues which correspond to a shift in source location in the virtual environment. The effect of incorporating a frequency dependent impedance based on the approximate acoustic properties of hair is also discussed. en_US
dc.embargo.terms null en_US
dc.identifier.citation Proceedings of the 12th International Conference on Auditory Display (ICAD2006), London, UK, June 20-23, 2006. Eds.: Tony Stockman, Louise Valgerður Nickerson, Christopher Frauenberger, Alistair D. N. Edwards and Derek Brock. International Community for Auditory Display, 2006. en_US
dc.identifier.uri http://hdl.handle.net/1853/50595
dc.publisher Georgia Institute of Technology en_US
dc.publisher Georgia Institute of Technology
dc.publisher.original International Community on Auditory Display en_US
dc.publisher.original International Community for Auditory Display (ICAD)
dc.relation.ispartofseries International Conference on Auditory Display (ICAD)
dc.subject Auditory display en_US
dc.subject Azimuth en_US
dc.subject Sphere diffraction en_US
dc.title Investigation of the effect of impedance on azimuth cues derived from spherical head models en_US
dc.type Text
dc.type.genre Proceedings
dspace.entity.type Publication
local.contributor.corporatename Sonification Lab
local.relation.ispartofseries International Conference on Auditory Display (ICAD)
relation.isOrgUnitOfPublication 2727c3e6-abb7-4df0-877f-9f218987b22a
relation.isSeriesOfPublication 6cb90d00-3311-4767-954d-415c9341a358
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