Exploration of the Functional Effect of Different Hearing Aid Noise Reduction Algorithms in an Ecologically Valid Conversational Situation
NCT ID: NCT06992310
Last Updated: 2025-06-03
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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NOT_YET_RECRUITING
NA
15 participants
INTERVENTIONAL
2025-08-31
2025-09-30
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
CROSSOVER
TREATMENT
SINGLE
Study Groups
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Hearing aid standard NR_1
Hearing Aid with standard noise reduction (NR) serves as reference condition
Hearing Aid with standard noise reduction (NR_1)
Each participant will be fitted with the 3 different noise reduction (sound changing) principles on the same hearing aid, saved to 3 manual programs (ensures exact same hearing loss compensation for each intervention).
Noise Reduction principle is a sound processing algorithm to remove noise from a speech signal to improve the speech intelligibility and comfort.
The active comparator condition is the state of the art Noise Reduction principle to mimic the natural directivity of the outer ear.
Hearing Aid with NR_2
NR\_2: Noise reduction principle 2
Hearing Aid with NR_2
Each participant will be fitted with the 3 different noise reduction (sound changing) principles on the same hearing aid, saved to 3 manual programs (ensures exact same hearing loss compensation for each intervention).
Noise Reduction principle is a sound processing algorithm to remove noise from a speech signal to improve the speech intelligibility and comfort.
The experimental conditions vary in their parametrization to result in different degrees of noise suppression and good speech quality.
Hearing Aid with NR_3
NR\_3: Noise reduction principle 3
Hearing Aid with NR_3
Each participant will be fitted with the 3 different noise reduction (sound changing) principles on the same hearing aid, saved to 3 manual programs (ensures exact same hearing loss compensation for each intervention).
Noise Reduction principle is a sound processing algorithm to remove noise from a speech signal to improve the speech intelligibility and comfort.
The experimental conditions vary in their parametrization to result in different degrees of noise suppression and good speech quality.
Interventions
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Hearing Aid with standard noise reduction (NR_1)
Each participant will be fitted with the 3 different noise reduction (sound changing) principles on the same hearing aid, saved to 3 manual programs (ensures exact same hearing loss compensation for each intervention).
Noise Reduction principle is a sound processing algorithm to remove noise from a speech signal to improve the speech intelligibility and comfort.
The active comparator condition is the state of the art Noise Reduction principle to mimic the natural directivity of the outer ear.
Hearing Aid with NR_2
Each participant will be fitted with the 3 different noise reduction (sound changing) principles on the same hearing aid, saved to 3 manual programs (ensures exact same hearing loss compensation for each intervention).
Noise Reduction principle is a sound processing algorithm to remove noise from a speech signal to improve the speech intelligibility and comfort.
The experimental conditions vary in their parametrization to result in different degrees of noise suppression and good speech quality.
Hearing Aid with NR_3
Each participant will be fitted with the 3 different noise reduction (sound changing) principles on the same hearing aid, saved to 3 manual programs (ensures exact same hearing loss compensation for each intervention).
Noise Reduction principle is a sound processing algorithm to remove noise from a speech signal to improve the speech intelligibility and comfort.
The experimental conditions vary in their parametrization to result in different degrees of noise suppression and good speech quality.
Eligibility Criteria
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Inclusion Criteria
* No suffering from any speech disorders
* Experienced hearing aid user (min. 6 months)
* Ability to stand and walk during the experiment
* Ability to fill in a questionnaire conscientiously
* Ability to produce a reliable hearing test result
* Ability to describe listening experiences/impressions
* The audiogram is in the fitting range of the hearing aid
* The audiogram is in the range of mild to moderate hearing losses (N2 - N4)
* Hearing loss in both ears
* Informed consent form
Exclusion Criteria
* Unaidable hearing loss in one or both ears
* Acute tinnitus (in either one ear and occurrence for less than 3 months)
* Anatomical deformity of one or both ears
* Single-sided deafness
* Unwillingness to wear the investigational device during the investigational visits
* Active pacemaker implant
* Ear canals are too narrow to take ear impressions
* Ear canals are too narrow for the use of customized earpieces
* Uncomfortable loudness threshold less than 80 dB for at least one measured frequency
* Known hypersensitivity or allergy against synthetic materials
* Acute symptoms of vertigo or dizziness
* Reported Parkinson's disease
18 Years
99 Years
ALL
No
Sponsors
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Sebastian Griepentrog
INDUSTRY
Responsible Party
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Sebastian Griepentrog
Clinical studies manager
Principal Investigators
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Josephine Hollenbach
Role: PRINCIPAL_INVESTIGATOR
Sonova AG
Locations
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Sonova AG
Stäfa, , Switzerland
Countries
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Central Contacts
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Facility Contacts
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Other Identifiers
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SRF-30177
Identifier Type: -
Identifier Source: org_study_id
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