Nov 6, 2001 - domain of discourse (e.g. train timetable enquiries [L+97], e-mail access [W+98], direc- tory enquiries ... lates the clerk's speech into British Sign Language (BSL) and displays the signs using a ..... polygons at 50 frames/s using Direct-X [Cor] on a Pentium class PC. ..... Speech Communication, 17:313-320,.
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