scholarly journals Numerical investigation of the earplug contribution to the low-frequency objective occlusion effect induced by bone-conducted stimulation

2021 ◽  
Vol 150 (3) ◽  
pp. 2006-2023
Author(s):  
Kévin Carillo ◽  
Olivier Doutres ◽  
Franck Sgard
Keyword(s):  
Numerical Investigation ◽  
Low Frequency ◽  
Occlusion Effect

The Occlusion Effect in Unilateral Functional Hearing Loss

1970 ◽  
Vol 13 (1) ◽  
pp. 37-40
Author(s):  
Gary Thompson ◽  
Marie Denman
Keyword(s):  
Hearing Loss ◽  
Bone Conduction ◽  
Low Frequency ◽  
Clinical Implications ◽  
The Right ◽  
Occlusion Effect

Bone-conduction tests were administered to subjects who feigned a hearing loss in the right ear. The tests were conducted under two conditions: With and without occlusion of the non-test ear. It was anticipated that the occlusion effect, a well-known audiological principle, would operate to draw low frequency bone-conducted signals to the occluded side in a predictable manner. Results supported this expectation and are discussed in terms of their clinical implications.

Observations on the Relations among Occlusion Effect, Compliance, and Vent Size

2002 ◽  
Vol 13 (01) ◽  
pp. 025-037 ◽  
Author(s):  
Roberto Carle ◽  
Søren Laugesen ◽  
Claus Nielsen
Keyword(s):  
Hearing Loss ◽  
Simple Model ◽  
Laboratory Experiment ◽  
Hearing Aid ◽  
Low Frequency ◽  
Minimum Size ◽  
Similar Relationship ◽  
Profound Influence ◽  
Occlusion Effect ◽  
Clinical Experiment

In a clinical experiment, it was found that there is a high correlation between the compliance measured by tympanometry and the minimum size of the earmold vent, which just solves the client's occlusion problem related to his/her own voice when using a hearing aid. For ears with sensorineural hearing losses, compliance explained 59 percent of the variation in vent size, whereas the average low-frequency hearing loss explained as little as 0.3 percent. In a laboratory experiment, the objective occlusion effect measured with the participants' own voices showed a similar relationship with compliance. Whereas the former relationship between compliance and vent size may be explained by a simple model, the latter relationship turns out to be the opposite of what a firstorder model predicts. Hence, compliance must be indicative of another aspect of the occlusion mechanism, which has a more profound influence on the observed occlusion effect than compliance itself.

Numerical investigation on effects of fringing reefs on low-frequency oscillations within a harbor

2019 ◽  
Vol 172 ◽  
pp. 86-95 ◽  
Author(s):  
Junliang Gao ◽  
Xiaojun Zhou ◽  
Li Zhou ◽  
Jun Zang ◽  
Hongzhou Chen
Keyword(s):  
Numerical Investigation ◽  
Low Frequency ◽  
Low Frequency Oscillations ◽  
Fringing Reefs
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