Donghyeon Yun, M.S., is a Ph.D. student in the Department of Speech, Language and Hearing Sciences at Indiana University. His research, under the guidance of Drs. Jennifer Lentz and Yi Shen, focuses on psychoacoustics and hearing devices with listeners with hearing loss. Prior to doctoral study, he worked as an audiologist at Konkuk University Medical Center. He got his master's degree in audiology at Hallym University, Republic of Korea. He now works as a research assistant in Auditory Perception Laboratory. His goals are to help clinical audiologists make use of better tools examining patients and fitting hearing devices.