liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
A model of the occlusion effect with bone-conducted stimulation
Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Technical Audiology.ORCID iD: 0000-0003-3350-8997
2007 (English)In: International Journal of Audiology, ISSN 1499-2027, Vol. 46, no 10, 595-608 p.Article in journal (Refereed) Published
Abstract [en]

An acoustical model using simplified ear anatomy was designed to predict the ear-canal sound pressure occlusion effect in humans. These predictions were compared perceptually as well as with ear-canal sound pressure occlusion effect measurements using a foam earplug with shallow insertion, a foam earplug with deep insertion into the bony part of the ear canal, and a circumaural earmuff. There was good resemblance between model predictions and ear-canal sound pressure measurements. It was also found that all occlusion positions, even deep ear-canal occlusion, produced noticeable occlusion effects. With the bone-conduction transducer at the forehead, the perceived occlusion effect was close to that obtained from ear-canal sound pressure data in the 0.3 to 2 kHz frequency range, when the stimulation was at the mastoid the difference between the perceived and measured ear-canal sound pressure occlusion effect was around 10 dB at frequencies below 1 kHz. Further, the occlusion effect was obtained in two clinical settings: with supra-aural earphones (TDH39), and insert earphones (CIR22). Although both transducers produced occlusion effects, insert earphones produced a greater effect than surpa-aural earphones at the low frequencies. © 2007 British Society of Audiology, International Society of Audiology, and Nordic Audiological Society.

Place, publisher, year, edition, pages
2007. Vol. 46, no 10, 595-608 p.
Keyword [en]
Occlusion effect, Bone conduction, Acoustic model
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-39484DOI: 10.1080/14992020701545880Local ID: 48945OAI: diva2:260333
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2014-10-08

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Stenfelt, Stefan
By organisation
Faculty of Health SciencesTechnical Audiology
In the same journal
International Journal of Audiology
Medical and Health Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 233 hits
ReferencesLink to record
Permanent link

Direct link