1. Department of Speech-Language Pathology and Audiology, University of Pretoria, Gauteng, South Africa;
2. Amsterdam UMC, Vrije Universiteit Amsterdam, Otolaryngology - Head and Neck surgery, Ear and Hearing, Amsterdam Public Health research institute, De Boelelaan, Amsterdam, Netherlands;
3. Communication Sciences Research Center, Cincinnati Childrens’ Hospital Medical Center, University of Cincinnati, Cincinnati, Ohio, USA;
4. Manchester Centre for Audiology and Deafness, University of Manchester, Manchester, UK;
5. Department of Electrical, Electronic and Computer Engineering, University of Pretoria, Pretoria, South Africa;
6. Ear Science Institute Australia, Subiaco, Australia