- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03512951
Subjective Evaluation of a Sound Processing Method for Hearing Aids on Auditory Distance Perception (EXTEND)
Subjective Evaluation of a Sound Externalization Method in Remote Microphone Systems for Binaural Hearing Aids With Respect to Auditory Distance Perception
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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-
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Lausanne, Switzerland, 1015
- Ecole Polytechnique Fédérale de Lausanne
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Vaud
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Lausanne, Vaud, Switzerland, 1015
- Ecole Polytechnique Fédérale de Lausanne
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Subjects fulfilling all of the following inclusion criteria are eligible for the study:
- Willing and able to give written informed consent as documented by signature,
- 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.
The presence of any one of the following exclusion criteria will lead to exclusion of the participant:
- Collaborator of the laboratory (LTS2) or student attending the courses of audio and acoustics given by the laboratory staff (EE-348 Electroacoustics, EE-548 Audio Engineering),
- 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.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Supportive Care
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: 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.
|
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).
|
Experimental: 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.
|
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).
|
Experimental: 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
|
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).
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Auditory distance estimation
Time Frame: 6 months (study completion)
|
This objective is assessed by using a single outcome, which is the perceived auditory distance, as reported by the patient on a graphical user interface.
The auditory distance is measured using an arbitrary scale (between 1 and 5) as available with sliders on a graphical user interface (GUI).
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6 months (study completion)
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Collaborators and Investigators
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- ID 2018-00709
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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