July 14, 2025 | Adelyn Mui
Imagine sitting in a busy café, struggling to follow a conversation as voices and background clatter blend together. For many people with hearing loss, this is a daily challenge—yet traditional hearing tests, conducted in silent rooms with isolated tones, fail to reflect these real-world difficulties. At the University of Illinois, a team of researchers is working to bridge that gap by developing more accurate and meaningful hearing assessments that simulate everyday listening environments.
Sadie Braun, an audiologist and clinical assistant professor in the Department of Speech and Hearing Science in the College of Applied Health Sciences, is the team’s primary investigator and recently received a $30,000 pilot grant from the Center for Health, Aging, and Disability. She is working with Dan Fogerty, an SHS associate professor, on a project titled “Creation of Speech-in-Noise Profiles for Clinical Fitting of Hearing Technologies.”
The project has two goals, the first being to analyze and better understand speech-in-noise testing results from clinical environments.
“Instead of simply pressing a button when you hear a tone, we’re trying to get more out of tests that already exist which mirror real-world scenarios,” Braun said. “For example, it is fairly common now to play full sentences while background voices are talking at the same time—more like what someone might hear at a party or in a restaurant. We want to use these results to help understand the nuances in what causes understanding-in-noise difficulties on an individual basis.”
The second goal of the project goes a step further: not just measuring how many mistakes a person makes during a hearing test, but understanding what kind of mistakes—and why they happen.
“Right now, clinical hearing tests can tell you that someone misunderstood a sentence, but not how they misunderstood it,” Fogerty said. “Our approach focuses on the types of errors people make and the conditions under which those errors occur.”
By analyzing these mistakes—called error profiles—the team hopes to gain new insights into what’s actually causing the difficulty. For example, one person might confuse similar sounds, like saying “cat” instead of “cats,” which could suggest a problem with sound clarity. Another person might only repeat the second half of a sentence, pointing to a possible cognitive issue like memory or processing speed.
“We’re identifying patterns across different types of errors,” Braun said. “Then we compare those patterns with results from standard hearing tests to see if there are connections. That could help us predict which patients need which kinds of interventions.”
Data collection will begin in the fall and participants will come from patients who come to the Audiology & Speech-Language Pathology Clinic and have consented to their audio recordings being used for this study. Braun said the tests focus more on adults, primarily those in their 50s and upward.
With those error profiles, the team hopes to use those to improve hearing aid fittings and outcomes for patient satisfaction.
“Different types of errors can have different real-life consequences,” Fogerty said. “Identifying the reasons why someone misunderstands speech will help the clinician identify recommendations to address those specific difficulties.”
With support from CHAD, the pilot grant will allow Braun and Fogerty to gather foundational data, refine their testing protocols and begin developing detailed error profiles. Their ultimate goal is to translate this information into better hearing aid fittings, more accurate diagnoses and improved quality of life for patients.
Looking ahead, the team plans to apply for additional funding to expand the project and validate their findings across broader patient populations.
Braun emphasized the strength of the partnership at the core of this work.
“This is a true collaboration between research and clinical practice,” she said. “Dr. Fogerty brings deep expertise in auditory research, while I bring the day-to-day clinical experience. Together, we’re approaching the same problem from different angles—and that’s what gives this project real potential to move the field forward.”
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