1. Department of Electrical Engineering, Chalmers University of Technology, Göteborg, Sweden
2. Department of Otolaryngology, Head and Neck Surgery, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
3. Region Västra Götaland, Habilitation & Health, Hearing Organization, Gothenburg, Sweden
4. ENT Unit, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden