1. Department of Otolaryngology Head and Neck Surgery, Key Laboratory of Otolaryngology Head and Neck Surgery, Ministry of Education Beijing Tongren Hospital, Capital Medical University Beijing China
2. Beijing Engineering Research Center of Audiological Technology Beijing China
3. Department of Automatic Control and Systems Engineering University of Sheffield Sheffield UK
4. Centre for Speech and Language Therapy and Hearing Science, Cardiff School of Sport and Health Sciences Cardiff Metropolitan University Cardiff United Kingdom