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To measure the impact of hearing protectors on the perception of speech in noise

Hiselius, Per; Edvall, Niklas and Reimers, Daniel (2015) In International Journal of Audiology 54. p.3-8
Abstract
Objective: To propose and evaluate a new method for assessing the potential impact on speech intelligibility when wearing a hearing protection device (HPD) in a noisy environment. Design: The method is based on a self adaptive method for finding the speech reception threshold (SRT) using speech material from the Callsign acquisition test (CAT) presented at a constant level while adjusting the level of a background noise. A key point is to primarily examine the impact of the HPD; i.e. the difference between occluded and unoccluded SRTs, presented as the speech intelligibility impact level. Study sample: A total of 31 test subjects. Results: The method is shown to be stable, with a minimum amount of learning effect, and capable of detecting... (More)
Objective: To propose and evaluate a new method for assessing the potential impact on speech intelligibility when wearing a hearing protection device (HPD) in a noisy environment. Design: The method is based on a self adaptive method for finding the speech reception threshold (SRT) using speech material from the Callsign acquisition test (CAT) presented at a constant level while adjusting the level of a background noise. A key point is to primarily examine the impact of the HPD; i.e. the difference between occluded and unoccluded SRTs, presented as the speech intelligibility impact level. Study sample: A total of 31 test subjects. Results: The method is shown to be stable, with a minimum amount of learning effect, and capable of detecting differences between hearing protection devices. It is also shown that low-attenuation passive HPDs are likely to have a very small effect on speech intelligibility in noise, and that an electronic HPD with a level-dependant function has the potential to improve intelligibility. Conclusions: The results are encouraging regarding the precision, repeatability, and applicability of the proposed method. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Hearing protection devices, speech intelligibility, speech reception, threshold, speech intelligibility impact level, learning effect
in
International Journal of Audiology
volume
54
pages
3 - 8
publisher
Taylor & Francis
external identifiers
  • wos:000349670800002
  • scopus:84922796346
ISSN
1708-8186
DOI
10.3109/14992027.2014.973539
language
English
LU publication?
no
id
ae1c0257-e36f-42a8-8351-7fee1de7ef69 (old id 5160237)
date added to LUP
2015-04-01 07:40:14
date last changed
2017-01-01 03:23:44
@article{ae1c0257-e36f-42a8-8351-7fee1de7ef69,
  abstract     = {Objective: To propose and evaluate a new method for assessing the potential impact on speech intelligibility when wearing a hearing protection device (HPD) in a noisy environment. Design: The method is based on a self adaptive method for finding the speech reception threshold (SRT) using speech material from the Callsign acquisition test (CAT) presented at a constant level while adjusting the level of a background noise. A key point is to primarily examine the impact of the HPD; i.e. the difference between occluded and unoccluded SRTs, presented as the speech intelligibility impact level. Study sample: A total of 31 test subjects. Results: The method is shown to be stable, with a minimum amount of learning effect, and capable of detecting differences between hearing protection devices. It is also shown that low-attenuation passive HPDs are likely to have a very small effect on speech intelligibility in noise, and that an electronic HPD with a level-dependant function has the potential to improve intelligibility. Conclusions: The results are encouraging regarding the precision, repeatability, and applicability of the proposed method.},
  author       = {Hiselius, Per and Edvall, Niklas and Reimers, Daniel},
  issn         = {1708-8186},
  keyword      = {Hearing protection devices,speech intelligibility,speech reception,threshold,speech intelligibility impact level,learning effect},
  language     = {eng},
  pages        = {3--8},
  publisher    = {Taylor & Francis},
  series       = {International Journal of Audiology},
  title        = {To measure the impact of hearing protectors on the perception of speech in noise},
  url          = {http://dx.doi.org/10.3109/14992027.2014.973539},
  volume       = {54},
  year         = {2015},
}