N/A
Completed N=33
Investigating Hearing Aid Frequency Response Curves
Hearing Loss, Sensorineural · Hearing Loss, Bilateral
Source: ClinicalTrials.gov NCT05521308 ↗
Enrolled (actual)
33
Serious AEs
0.0%
Results posted
Mar 2025
Primary outcomePrimary: Streaming Sound Quality Ratings — 10.7; 9.41; 7.46; 5.91 Mean Preference Counts per Participant — p=<0.001
Summary
Internal research on the manufacturer's hearing aid products has idenitfied areas in which the investigators can improve the hearing aid frequency response curve. This study aims to investigate the current freqeuncy response curve in the manufacturer's products to variations of these curves to determine if hearing aid users prefer the variations over the manufacturer's standard curve.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Streaming Sound Quality Ratings |
10.7; 9.41; 7.46; 5.91; 8.32; 8.05 | <0.001 sig |
| SECONDARY Sound Quality Rating - Live - Counts |
79; 95; 46; 86; 104; 30 | — |
| SECONDARY Sound Quality Rating - Live - Preferences |
15; 6; 1 | .13 |
| SECONDARY US Matrix Test in Quiet - SRT |
34.1; 25.8; 26.1 | <0.001 sig |
Eligibility Criteria
Inclusion Criteria
- N2 - N4 Hearing losses
- Health Outer ear
- no visible congenital or traumatic deformity of the outer ear
- Symmetrical hearing loss - no air-bone gap greater than 10 dB at all 500, 1000, 2000, and 4000 Hz.
- Ability to answer questions and repeat sentences
- No history of problematic tinnitus or pain/discomfort from loud sounds
- No history of active drainage from the ears in the past 90 daysInformed consent as documented by signature
- Willingness to wear different styles of couplings
- Willingness to wear binaural fitting
- Experienced Users = more than 3 months of hearing aid experience. If not more than 3 months, they will be considered a new user (Experience will not exclude them from study, only will be used to categorize them)
- Ability to travel throughout facility
Exclusion Criteria
- Contraindications to the medical device (MD) in this study (e.g. known hypersensitivity or allergy to the investigational products)
- Limited mobility/not able to come to the scheduled visit
- Inability to produce reliable hearing test results
- History of active drainage from the ear in the previous 90 days
- Abnormal appearance of the eardrum and ear canal.
Data sourced from ClinicalTrials.gov (NCT05521308). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.