1. Department of Medical Physics and Acoustics, Medizinische Physik and Cluster of Excellence "Hearing4all", Universität Oldenburg, Oldenburg, Germany
2. Department of Otolaryngology, Head and Neck Surgery, Universität Oldenburg, Oldenburg, Germany
3. Faculty of Education, University of Hong Kong, Hong Kong, China
4. Hörzentrum Oldenburg gGmbH, Oldenburg, Germany