Mustafa Yüksel
Dr. Mustafa Yüksel is an audiologist and assistant professor at Ankara Medipol University, where he also serves as the Chair of the Department of Audiology. His research focuses on suprathreshold auditory processing, timbre perception, and cochlear implant sound coding. Dr. Yüksel has authored more than twenty peer-reviewed journal articles and a book chapter in the Springer Nature series, with much of his work integrating psychoacoustic methods and clinical audiology. He has completed two TÜBİTAK-funded national research projects and held research positions at the University of Washington and the University of Groningen. His recent work includes developing adaptive, web-based auditory tests and simulating cochlear implant processing strategies in MATLAB to investigate temporal fine structure and timbre cues. Combining experimental rigor with clinical insight, Dr. Yüksel’s research aims to advance diagnostic and rehabilitative approaches for complex auditory skills.
Sessions
Traditional audiological assessments focus primarily on detecting hearing thresholds, yet real-world listening depends heavily on suprathreshold auditory processing — the ability to analyze complex sound attributes such as temporal, spectral, and timbral cues. This instructional course will introduce clinicians and researchers to a range of behavioral and psychoacoustic methods for assessing suprathreshold auditory function in both normal-hearing and hearing-impaired populations. Emphasis will be placed on tools that can be implemented in the clinic or remotely, including adaptive gap detection, spectral-ripple discrimination, and music-based perceptual tests. Through illustrative data and case examples, participants will learn how these measures provide unique insights into auditory resolution, temporal precision, and listening effort beyond the audiogram.
Outcome Objectives
After completing this session, participants will be able to:
Explain the concept of suprathreshold auditory processing and its relevance to speech and music perception.
Identify validated psychoacoustic tasks that quantify temporal and spectral resolution at suprathreshold levels.
Interpret test outcomes in relation to cochlear implant and hearing-aid performance.
Integrate suprathreshold testing into clinical and research protocols using adaptive or remote-testing platforms.
Evaluate how suprathreshold measures can guide individualized auditory rehabilitation and device programming.
Background
Growing evidence suggests that many patients with “normal” audiograms still experience listening difficulties in noise, music, or emotionally rich environments. These deficits often arise from degraded temporal fine structure or poor neural encoding, which conventional audiometry fails to capture. Advances in auditory neuroscience and computational modeling now allow clinicians to probe these mechanisms using time-efficient psychoacoustic paradigms. The presenter has developed and validated several adaptive, web-based tests — including gap detection and timbre perception tasks — that extend the clinical toolkit for auditory diagnostics. This course will bridge the gap between laboratory methods and real-world audiology practice, offering participants actionable strategies for assessing and interpreting suprathreshold auditory performance in diverse patient populations.
Compression remains one of the most critical yet debated aspects of hearing aid signal processing. While it restores audibility and dynamic range for soft sounds, inappropriate compression settings can introduce envelope distortion, reduce musical fidelity, and contribute to listening fatigue. This panel explores how compression parameters interact with perceptual and cognitive load across speech and music listening conditions.
Recent psychoacoustic and physiological evidence suggests that auditory fatigue arises not only from cognitive effort but also from the temporal and spectral inconsistencies introduced by signal processing. Building on experimental findings comparing speech and music stimuli, the panel will highlight how the brain’s adaptive mechanisms respond differently to compressed speech versus complex musical sounds.
Through a multidisciplinary lens—spanning auditory neuroscience, psychoacoustics, clinical audiology, and signal processing—the discussion will aim to bridge the gap between laboratory data and hearing aid fitting practices. The session will conclude with recommendations for evidence-based compression strategies that balance clarity, comfort, and naturalness in both communication and musical enjoyment.