Tea,

           I am not trying to be dense here, but thorough.  So it's not an issue of getting those to read aloud, you use other means to have them read?  What I'm trying to nail down definitively is you're not talking about something like audio description, but just want to be able to enable/disable subtitles.
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Brian - Windows 10, 64-Bit, Version 21H1, Build 19043  

I do not understand why some seek to separate a person from their actions.  The self is composed of an individual’s thoughts, actions, and expression, which are contained in and actuated by the body.  What you do and say is the clearest indicator of who you are.

      ~ Brian Vogel