1. WAVES Research Group, Department of Information Technology, Ghent University, Technologiepark 126, B 9052 Gent-Zwijnaarde, Belgium
2. Joint Research Unit in Environmental Acoustics (UMRAE), Centre for Studies on Risks, Mobility, Land Planning and the Environment (CEREMA) and University Gustave Eiffel, F-44344 Bouguenais, France