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- aggregation classification "A1".
- aggregation creator person.
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- aggregation date "2008".
- aggregation hasFormat 445686.bibtex.
- aggregation hasFormat 445686.csv.
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- aggregation isPartOf urn:issn:0001-4966.
- aggregation language "eng".
- aggregation subject "Technology and Engineering".
- aggregation title "Verifying the attenuation of earplugs in situ: Method validation using artificial head and numerical simulations".
- aggregation abstract "The use of in situ measurements of hearing protectors’ (HPD’s) attenuation following the microphone in real ear (MIRE) protocol is increasing. The attenuation is hereby calculated from the difference in sound levels outside the ear and inside the ear canal behind the HPD. Custom-made earplugs have been designed with an inner bore that allows inserting a miniature microphone. A thorough understanding of the difference, henceforth called transfer function, between the sound pressure of interest at the eardrum and the one measured at the inner bore of the HPD is indispensable for optimizing the MIRE technique and extending its field of application. This issue was addressed by measurements on a head-and-torso-simulator and finite difference time domain numerical simulations of the outer ear canal occluded by an earplug. Both approaches are in good agreement and reveal a clear distinction between the sound pressure at the MIRE microphone and at eardrum, but the measured transfer functions appear to be stable and reproducible. Moreover, the most striking features of the transfer functions can be traced down to the geometrical and morphological characteristics of the earplug and ear canal.".
- aggregation authorList BK685000.
- aggregation endPage "981".
- aggregation issue "2".
- aggregation startPage "973".
- aggregation volume "124".
- aggregation isDescribedBy 445686.
- aggregation similarTo LU-445686.