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An earcanal-sizing tool at the tip of your fingers


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Viallet, G. and Voix, J.. 2019. « An earcanal-sizing tool at the tip of your fingers ». In Proceedings of the 26th International Congress on Sound and Vibration (ICSV) (Montreal, QC, Canada, July 07-11, 2019) Canadian Acoustical Association.

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The human earcanal remains a mostly unchartered territory: earcanal shapes and dimensions are unique to each individual and despite recent advances in 3D scanning, the capture of the earcanal’s exact geometry remains a challenge. Nevertheless, the proper selection of an intra-aural hearing protector often requires that the earcanal size be estimated. Therefore, several tools -such as earcanal and concha gages- have been developed over the years to quickly and approximately assess one’s earcanal dimensions and recommend an appropriately-matching earplug size. In this anthropometric study, sparked by the lexical similarity in the French language between the name for the little finger (auriculaire) and the adjective related to aural parts (auriculaire), we explore whether Nature did not provide a suitable earcanal sizing tool... at the tip of our fingers. The methodology is based on the calculation of a correlation coefficient matrix obtained by comparing the characteristic geometric features of both the ear canal and the little finger. The results from a recent pilot study will be presented together with possible field applications for hearing protectors and a selection of in-ear wearables.

Item Type: Conference proceeding
ISBN: 9781999181000 (ISBN)
Voix, Jérémie
Affiliation: Génie mécanique
Date Deposited: 20 Nov 2019 21:39
Last Modified: 16 Sep 2021 19:11

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