1. Department of Didactics, School Organization and Special Didactics, Faculty of Education, The National Distance Education University (UNED), Madrid, Spain
2. Department of Speech, Music and Hearing, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm, Sweden
3. Department of Linguistics, Stockholm University, Stockholm, Sweden
4. University College of Music Education Stockholm, Stockholm, Sweden
5. Division of Speech and Language Pathology, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden
6. Department of Biomedical Engineering and Health Systems, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), KTH Royal Institute of Technology, Stockholm, Sweden