Silent vs vocalized articulation for a portable ultrasound-based silent speech interface. - Victoria M. Florescu; Lise Crevier-Buchman; Bruce Denby; Thomas Hueber; Antonia Colazo-Simon; Claire Pillot-Loiseau; Pierre Roussel-Ragot; Cédric Gendrot; Sophie Quattrocchi (INTERSPEECH, 2010)