Sound Quality Comparisons With Different Hearing Aid Couplings and Venting Systems

Study Overview
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Brief Summary
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Participants will be comparing the sound quality of their own voice and the sound quality of streamed music using universal couplings and a custom earmold with a dynamic vent.

Official Title
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Sound Quality and Occlusion Comparisons With Different Hearing Aid Couplings and Venting Systems

Conditions
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Hearing Loss, Sensorineural

Intervention / Treatment
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* Device: Audeo P90 hearing aid with custom earmolds using dynamic venting
* Device: Audeo P90 hearing aid with Open domes
* Device: Audeo P90 hearing aid with Vented domes


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Mild to severe bilateral sensorineural hearing loss hearing must be symmetrical below 500 Hz must live within 30 miles of Aurora IL Exclusion Criteria: -

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Other
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Custom earmolds, then Open domes, then Vented domes<br>Participants first fit with Audeo 90P hearing aids and custom earmolds with dynamic venting, then fit with the same hearing aids using open domes, then fit with the same hearing aids using vented domes. | Device: Audeo P90 hearing aid with custom earmolds using dynamic venting<br>* Audeo P90 hearing aids coupled to custom earmolds that use dynamic venting.<br>Device: Audeo P90 hearing aid with Open domes<br>* Audeo P90 hearing aid coupled with non-custom, manufacturer open domes<br>Device: Audeo P90 hearing aid with Vented domes<br>* Audeo P90 hearing aid coupled with non-custom, manufacturer vented domes<br>|
| Experimental: Open domes, then Vented domes, then Custom earmolds<br>Participants first fit with Audeo 90P hearing aids and open domes, then fit with the same hearing aids using vented domes, then fit with the same hearing aids using custom earmolds with dynamic venting. | Device: Audeo P90 hearing aid with custom earmolds using dynamic venting<br>* Audeo P90 hearing aids coupled to custom earmolds that use dynamic venting.<br>Device: Audeo P90 hearing aid with Open domes<br>* Audeo P90 hearing aid coupled with non-custom, manufacturer open domes<br>Device: Audeo P90 hearing aid with Vented domes<br>* Audeo P90 hearing aid coupled with non-custom, manufacturer vented domes<br>|
| Experimental: Vented domes, then Custom earmolds, then Open domes<br>Participants first fit with Audeo 90P hearing aids and vented domes, then fit with the same hearing aids using custom earmolds with dynamic venting, then fit with the same hearing aids using open domes. | Device: Audeo P90 hearing aid with custom earmolds using dynamic venting<br>* Audeo P90 hearing aids coupled to custom earmolds that use dynamic venting.<br>Device: Audeo P90 hearing aid with Open domes<br>* Audeo P90 hearing aid coupled with non-custom, manufacturer open domes<br>Device: Audeo P90 hearing aid with Vented domes<br>* Audeo P90 hearing aid coupled with non-custom, manufacturer vented domes<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Sound Quality of Streamed Music Rating Scale | subjective rating on scale from 0 (worst) to 100 (best) for sound quality of streamed signal | 1 day | 
| Own Voice Sound Quality Rating Scale | subjective rating on a scale from 0 (worst) to 100 (best) for sound quality of participant's own voice quality. | 1 day |