1. Medizinische Physik and Cluster of Excellence “Hearing4all”, Department of Medical Physics and Acoustics, University of Oldenburg, Oldenburg, Germany;
2. Department of Otorhinolaryngology – Head & Neck Surgery, Chinese PLA General Hospital, Beijing, China;
3. Division of Speech and Hearing Science, University of Hong Kong, Hong Kong;
4. HörTech gGmbH, Oldenburg, Germany