I find members here will read the manual but you have to supply the full model number.
I'll guess it's Voice Guide. To disable Voice Guide function on Samsung UHDTV 75JU7100: Menu/123-Menu--System Accessibility-Voice Guide-Turn Off. Hope this helps.
I have a Samsung TV and a friend connected his iPad to it to listen to music. Now I have an announcement whenever I adjust the volume and it overpowers the show ... it also announces that I'm using HDMI 1, etc. extremely irritating! I cannot figure out how to turn this off ~~ please help!