1. Centre National de la Recherche Scientifique (CNRS)–IKER (UMR 5478), Campus de la Nive, Château-Neuf 15, place Paul Bert 64100, Bayonne, France
2. Speech Hearing and Phonetic Sciences, University College London, Chandler House, 2 Wakefield Street, London WC1N 1PF, United Kingdom