Design and Implementation of Application for the Hearing Impaired People ChoulWoo Kim, Dongyun Kim, Hyundo Lee, Hanseong Park, Giung Kwon, Eunju Park and Hankyu Lim MATEC Web Conf., 125 (2017) 04007 Published online: 04 October 2017 DOI: 10.1051/matecconf/201712504007