Research in assistance in speech recognition

I am a current Communication student here at The Royal college of art and I have been developing an app to assist people with hearing loss in speech recognition. I have attached links to the app prototype as well as the research that I have conducted. I believe that it could help children with hearing loss pronounce words and phrases better. I was hoping to get feedback from people who have or have had hearing loss and how they think this app could help them. Looking forward to your reply.