Scientists uncover how hearing loss affects speech recognition in noisy environments
NCT ID NCT06465979
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how people with normal hearing, hearing loss, or cochlear implants use nearby sounds to recognize speech. Researchers will test participants' ability to identify words and sentences in quiet and noisy settings. The goal is to better understand how hearing aids and implants can be improved to help people hear more clearly.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 680 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2023
- Expected to finish
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Jul 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 65 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Be able to recognize spoken words in English * Be a competent speaker of north American English * Be an adult between the age of 18 to 65 years * Have normal audiometric thresholds below 25 decibels hearing loss (dB HL) at frequencies between 250 and 8000 Hz OR have audiometric thresholds not exceeding 40 dB HL at frequencies between 250 and 8000 Hz OR have audiometric thresholds not exceeding 55 dB HL at frequencies between 250 and 8000 Hz OR use a cochlear implant * Lack language-learning or other cognitive disabilities Exclusion Criteria: * Inability to recognize spoken words in English * Not a competent speaker of north American English * Be younger than 18 years of age * Be older than 65 years of age * Have normal audiometric thresholds exceeding 25 dB HL at frequencies between 250 and 8000 Hz OR have audiometric thresholds exceeding 40 dB HL at frequencies between 250 and 8000 Hz OR have audiometric thresholds exceeding 55 dB HL at frequencies between 250 and 8000 Hz * Language-learning or other cognitive disabilities
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Marquette University
RECRUITINGMilwaukee, Wisconsin, 53233, United States
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University of Minnesota
RECRUITINGMinneapolis, Minnesota, 55455, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Scientists map how noise blurs speech across frequencies
- 30 years of cochlear implant data could reshape hearing care in china
- Can a new hearing aid strategy cut through the noise?
- Can a new bone conduction implant restore hearing for the long haul?
- Can eye movements reveal the hidden toll of hearing loss?