Cant find text to speech in this application

Sir/Mam, your application is good but the main motto of this app is to help dumb people,but when i type anything in that text field it should get recorded and saved for later use. but that sort of application is not yet build in this project. Instead in the project when i press on the speak button the speech is converted to voice,and can be saved. But dumb people cant speak so how can he use this app which needs to speak before you type.so, can you help me to solve this problem.

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