Anthropometry of external auditory canal by non-contactable measurement

Tsung Hsien Tu, Jen Fane Yu, Ren Hung Wang, Yen Sheng Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Human ear canals cannot be measured directly with existing general measurement tools. Furthermore, general non-contact optical methods can only conduct simple peripheral measurements of the auricle and cannot obtain the internal ear canal shape-related measurement data. Therefore, this study uses the non-invasive method, computed tomography (CT) technology, to measure thegeometric shape of the ear canal to complete the anthropometry of external auditorycanal. The results of the study show that the average height and width of ear canalopenings,and the depth of the first bend for maleare generally longer, wider and deeper than those forfemale. In addition, the difference between the height and width of the ear canal openingis about 40% (p<0.05). Hence, currently the circular cross-section shape of the earplugs should be replaced byan elliptical cross-section shape during manufacturing for better fitting.

Original languageEnglish
Title of host publicationINTERNOISE 2014 - 43rd International Congress on Noise Control Engineering
Subtitle of host publicationImproving the World Through Noise Control
EditorsJohn Davy, Marion Burgess, Charles Don, Liz Dowsett, Terry McMinn, Norm Broner
PublisherAustralian Acoustical Society
ISBN (Electronic)9780909882037
StatePublished - 2014
Event43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014 - Melbourne, Australia
Duration: 16 11 201419 11 2014

Publication series

NameINTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control

Conference

Conference43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014
Country/TerritoryAustralia
CityMelbourne
Period16/11/1419/11/14

Keywords

  • Anthropometry
  • Computed tomography
  • External auditory canal

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