Testing hearing aid noise reduction for people with inner ear hearing loss
Tests how hearing aid noise settings affect understanding speech in noisy places.
Key facts
- Who runs it
- Purdue University
- Where
- West Lafayette, United StatesSee the site
- Trial code
- Registry title
- Evaluating a Deep Neural Noise-Reduction Algorithm for Hearing Aids
- Status
- Recruiting
- People taking part
- 50 people, planned
- Started
- 16 Oct 2025
- Planned end
- 30 Apr 2026
- Type of study
- Interventional, 2 groups
- Treatments tested
- Hearing Aid Noise Reduction - Off
- Hearing Aid Noise Reduction - Low
- Hearing Aid Noise Reduction - High
- Negative SNR
- Zero signal-to-noise ratio
- Positive SNR
- Record updated
- 17 December 2025
Who can take part
AI summary
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for adults with mild-to-moderate inner-ear (cochlear) hearing loss who could use hearing aids. They will test hearing-aid noise-reduction settings for understanding speech in noise.
- Age
- 18 years and older
- Sex
- All sexes
- Disease stage
- Mild-to-moderate cochlear hearing loss: at least 20 dB of hearing loss at 2000 Hz, with hearing getting worse at higher pitches.
- Biomarker or test result
- A hearing test (audiogram) showing at least 20 dB of hearing loss at 2000 Hz.
Main reasons for not taking part
- Normal hearing
- Severe or profound hearing loss
- Conductive hearing loss (sound blocked in the outer or middle ear)
- Neural hearing loss (a problem with the hearing nerve)
The registry criteria, word for word
Show all 5 criteriaShow less
Who can take part
- A hearing aid candidate with mild-to-moderate cochlear hearing loss, based on audiometric profile (at least 20 dB of hearing loss at 2000 Hz, with progressively worse hearing levels at higher frequencies)
Who cannot take part
- Normal hearing
- Severe or profound hearing loss
- Conductive hearing loss
- Neural hearing loss
Where in United States
- Purdue UniversityWest Lafayette, United StatesContact: Joshua Alexander, Ph.D.Taking people
About the trial
What the trial wants to find out
This study is designed to understand how different hearing-aid noise-reduction technologies affect a listener's ability to hear speech in noisy environments. Participants will listen to speech at several background-noise levels while trying different processing settings. By comparing performance across these conditions, the study aims to identify which types of noise reduction improve speech intelligibility the most. We expect that some noise-reduction strategies will help listeners understand speech better than others, especially in more difficult listening situations.
The 2 groups in the trial
- Hearing Aid Noise-Reduction ProcessingTreatment being tested
Participants complete all noise-reduction conditions (Off, Low, High) at all tested signal-to-noise ratios in a within-subject crossover design.
Treatment: Hearing Aid Noise Reduction - Off, Hearing Aid Noise Reduction - Low, and Hearing Aid Noise Reduction - High
- Signal-to-Noise RatioTreatment being tested
Relative speech and noise levels
Treatment: Negative SNR, Zero signal-to-noise ratio, and Positive SNR
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorData and sources
- Registry record
- Listed on ClinicalTrials.gov.
- Official title
- Evaluating a Deep Neural Noise-Reduction Algorithm for Hearing Aids in Varying Signal-to-Noise Conditions
- Plain-language title
- Testing hearing aid noise reduction for people with inner ear hearing lossGenerated from the registry record. The registry title is the official one.
- AI summary
- From the trial's eligibility criteria. Read by machine on 14 November 2026.
- Record updated
- 17 December 2025