The opportunities and challenges of in-ear noise dosimetry
AbstractDespite many efforts to reduce sound at the source, noise at work remains a major problem in many industries. While personal hearing protection devices (HPDs) are currently the most commonly used defense against noise induced hearing loss (NIHL), their effectiveness is particularly contingent upon two variables: the ambient noise level and the attenuation of the HPD. Yet in most cases, those two metrics are not precisely known, which leads workers to be inadequately protected. To overcome this problem, recent studies have involved the development of in-ear dosimetric HPDs that are meant to monitor the protected noise exposure levels in real-time. These can offer clear benefits for hearing conservation as they should finally permit to determine whether a given worker is properly protected against noise and, thus, help increasing the effectiveness of HPDs. But to achieve such result, additional research is needed to make the noise levels measured in the occluded ear canal truly representative of the noise dose effectively received by the worker. This research should deal with the acoustical corrections due to the Transfer Function of the Open Ear as well as the resonance between the hearing protector and the subject’s eardrum. It should also address the issues regarding the noise induced by the wearer himself and a potential change in noise susceptibility provoked by the occlusion of the ear canal. Future results should offer additional insight on the use of in-ear noise dosimetry to prevent NIHL.
How to Cite
Author Licensing Addendum
This Licensing Addendum ("Addendum") is entered into between the undersigned Author(s) and Canadian Acoustics journal published by the Canadian Acoustical Association (hereinafter referred to as the "Publisher"). The Author(s) and the Publisher agree as follows:
Retained Rights: The Author(s) retain(s) the following rights:
- The right to reproduce, distribute, and publicly display the Work on the Author's personal website or the website of the Author's institution.
- The right to use the Work in the Author's teaching activities and presentations.
- The right to include the Work in a compilation for the Author's personal use, not for sale.
Grant of License: The Author(s) grant(s) to the Publisher a worldwide exclusive license to publish, reproduce, distribute, and display the Work in Canadian Acoustics and any other formats and media deemed appropriate by the Publisher.
Attribution: The Publisher agrees to include proper attribution to the Author(s) in all publications and reproductions of the Work.
No Conflict: This Addendum is intended to be in harmony with, and not in conflict with, the terms and conditions of the original agreement entered into between the Author(s) and the Publisher.
Copyright Clause: Copyright on articles is held by the Author(s). The corresponding Author has the right to grant on behalf of all Authors and does grant on behalf of all Authors, a worldwide exclusive license to the Publisher and its licensees in perpetuity, in all forms, formats, and media (whether known now or created in the future), including but not limited to the rights to publish, reproduce, distribute, display, store, translate, create adaptations, reprints, include within collections, and create summaries, extracts, and/or abstracts of the Contribution.