Love this! A couple years ago I had to do similar for my grandma (94 at the time) who was losing her hearing as well as short term memory loss. Was surprised how few off the shelf options there were.
Had to write a medium article with exact instructions for how to use it otherwise she was very skeptical of using it. The only issue was that she would sometimes read aloud which would enter her into a feedback loop lol.
https://medium.com/@admangan2018/how-to-utilize-the-transcri...