PhD degree successfully defended by Christoph Scheidiger

Wednesday 24 Jan 18


Torsten Dau
Head of Sections, Professor
DTU Health Tech
+45 45 25 39 77


Johannes Zaar
Guest Researcher
DTU Health Tech

On January 18, Christoph Scheidiger successfully defended his PhD thesis
"Assessing speech intelligibility in hearing-impaired listeners".

Quantitatively assessing the speech perception deficits observed in hearing-impaired people is crucial for the development of successful hearing aids. Christoph Scheidiger’s dissertation describes two main streams of work aiming at a better quantitative understanding of a hearing loss:
The first part presents a new analysis to study consonant-vowel perception in hearing-impaired people where an information theoretical approach is used to compare the outcomes across different listening conditions. The second part presents different versions of a computational speech intelligibility model that attempts to account for speech intelligibility data obtained in normal-hearing and hearing-impaired listeners in steady and fluctuating interferers.

At the defense, there was an intense and interesting discussion with the examiners about the different model components in Christoph’s approach and about the implications both for further fundamental studies on characterizing individual hearing loss as well as model guided compensation strategies in hearing aids.

Caption (Photo Niclas Janssen):
(leftmost) Professor Enrique Lopez-Poveda, Universidad de Salamanca, Spain

Examiners Associate Professor Bastian Epp, DTU Elektro
PhD Christoph Scheidiger
Principal Supervisor Professor Torsten Dau, DTU Elektro
Examiner Professor Tim Jürgens, University Oldenburg, Germany
Co-supervisor :Dr. Johannes Zaar, DTU Elektro
22 JANUARY 2020