guys iv bn hvng ts prblm for two days bt i now managed to shut ts annoying woman,,,
1: open SETTINGS
2: go to APPLICATION MANAGER 
3: scroll to e left to ALL
4: scroll dwn to SAMSUNG TTS n click it
5: click disable en force stop
evrythng ws bck to normal i even enabled SAMSUNG TTS  to see if there is still a voice bt ere ws no voice js perfct agin try this...