Adding subtitles or caption to presentations can help student who prefer reading to audio or those with hearing impairments. When you present slides, you can turn on automatic captions to display the speaker's words in real time at the bottom of the screen. The quality of the transcription depends on ambient noise level, and the transcription isn't great for some discipline-specific terminology, but overall it's relatively good.
- PowerPoint in Office365 has a feature called live subtitles. When you are presenting, it generates a live transcription of what you are saying. It can also translate to different languages. Present more inclusively with live captions & subtitles in PowerPoint
- Google Slides does live captions as well. This feature is available in U.S. English only, using Chrome on a computer.