Subjective Evaluation of a Sound Processing Method for Hearing Aids on Auditory Distance Perception
NCT ID: NCT03512951
Last Updated: 2018-12-20
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
30 participants
INTERVENTIONAL
2018-10-09
2018-11-27
Brief Summary
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Detailed Description
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Conditions
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Keywords
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Study Design
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NON_RANDOMIZED
PARALLEL
SUPPORTIVE_CARE
NONE
Study Groups
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Normal hearing
A control group including ten normal-hearing participants. These participants are recruited because they can be considered as a reference when compared to hearing-impaired patients. They usually provide homogeneous results that are expected to be significantly different than those obtained with hearing-impaired patients. In this study, normal-hearing participants are expected to provide better and more consistent performance of auditory distance estimation.
Digital signal processing algorithms
The intervention consists in applying five processing on some recorded speech signals. In particular, the processing performed by one specific algorithm is compared against the four other. The applied processing is supposed to restore sound externalization (expected audio-visual fusion).
10 experienced hearing impaired
A group of ten (expected sample size) severe-to-profound hearing-impaired patients who have a past and/or present experience of more than 6 months with remote microphone systems. These patients are expected to be aware of the drawbacks of the current remote microphone technology with respect to sound localization, auditory distance estimation, and audio-visual fusion.
Digital signal processing algorithms
The intervention consists in applying five processing on some recorded speech signals. In particular, the processing performed by one specific algorithm is compared against the four other. The applied processing is supposed to restore sound externalization (expected audio-visual fusion).
10 naive hearing impaired
A group of ten severe-to-profound hearing-impaired patients with no past or current experience with remote microphone systems. They are referred to as naïve patients. These patients must have similar profiles to the patients in the experienced group as regards the degree of hearing loss, origin of hearing loss (congenital, pre- or post-lingual disability), age, gender, and hearing aid technology. They will be selected and recruited on the basis of the patients included in experienced group
Digital signal processing algorithms
The intervention consists in applying five processing on some recorded speech signals. In particular, the processing performed by one specific algorithm is compared against the four other. The applied processing is supposed to restore sound externalization (expected audio-visual fusion).
Interventions
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Digital signal processing algorithms
The intervention consists in applying five processing on some recorded speech signals. In particular, the processing performed by one specific algorithm is compared against the four other. The applied processing is supposed to restore sound externalization (expected audio-visual fusion).
Eligibility Criteria
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Inclusion Criteria
* French-native adult speakers,
* (Preferably) younger than 60 y.o.
For all normal-hearing participants:
\- Hearing thresholds lower or equal to 20 dB on both ears, as ensured by a pure-tone audiometry (125 Hz to 8 kHz) conducted at the beginning of the session.
For all hearing-impaired patients:
* Patients of Mr. Philippe Estoppey, private audiologist settled in Lausanne,
* User of bilateral BTE Phonak hearing aids, commercialized after July 2012, with fittings that did not change over the last three months,
* Presenting a severe-to-profound sensorineural hearing loss,
* Presenting a symmetrical hearing loss (no bilateral hearing threshold that differ by more than 20 dB at any audiometric frequency (125 Hz - 4 kHz)).
For HI patients experienced with remote microphone systems:
\- Past or present users of FM and/or Roger devices for more than six months.
For other HI patients:
\- No past or present experience with FM and/or Roger devices for more than one month.
Exclusion Criteria
* History of chronic or terminal illness, psychiatric disturbance, senile dementia, or cognitive impairment,
* History of strong tinnitus and/or hyperacusis,
* Strong visual impairment after correction with glasses or not,
* History of epilepsy or other reactions associated with the proximity to a screen,
* Motor disability that would disturb their presence at EPFL.
18 Years
60 Years
ALL
Yes
Sponsors
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Gilles Courtois
UNKNOWN
Vincent Grimaldi
UNKNOWN
Eleftheria Georganti
UNKNOWN
Peter Derleth
UNKNOWN
David Sooprayen
UNKNOWN
Sonova AG
INDUSTRY
Responsible Party
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Locations
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Ecole Polytechnique Fédérale de Lausanne
Lausanne, Canton of Vaud, Switzerland
Ecole Polytechnique Fédérale de Lausanne
Lausanne, , Switzerland
Countries
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References
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Courtois G, Grimaldi V, Lissek H, Estoppey P, Georganti E. Perception of Auditory Distance in Normal-Hearing and Moderate-to-Profound Hearing-Impaired Listeners. Trends Hear. 2019 Jan-Dec;23:2331216519887615. doi: 10.1177/2331216519887615.
Other Identifiers
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ID 2018-00709
Identifier Type: -
Identifier Source: org_study_id