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language
eng
Author
Shimokura, Ryota Nara Medical University
Hosoi, Hiroshi
Nishimura, Tadashi
Iwakura, Takashi
Yamanaka, Toshiaki
Description
When the aural cartilage is made to vibrate it generates sound directly into the external auditory canal which can be clearly heard. Although the concept of cartilage conduction can be applied to various speech communication and music industrial devices (e.g. smartphones, music players and hearing aids), the conductive performance of such devices has not yet been defined because the calibration methods are different from those currently used for air and bone conduction. Thus, the aim of this study was to simulate the cartilage conduction sound (CCS) using a head and torso simulator (HATS) and a model of aural cartilage (polyurethane resin pipe) and compare the results with experimental ones. Using the HATS, we found the simulated CCS at frequencies above 2 kHz corresponded to the average measured CCS from seven subjects. Using a model of skull bone and aural cartilage, we found that the simulated CCS at frequencies lower than 1.5 kHz agreed with the measured CCS. Therefore, a combination of these two methods can be used to estimate the CCS with high accuracy.
Journal Title
Journal of sound and vibration
Volume
335
Start Page
261
End Page
268
ISSN
10958568
Published Date
2015-01-20
DOI
DOI Date
2017-02-06
NCID
AA11543262
Publisher
Elsevier
NII Type
Journal Article
Format
PDF
Rights
© 2014 Elsevier Ltd. All rights reserved.
Text Version
著者版
Gyoseki ID
e29898
OAI-PMH Set
Other