While using your microphone in Google Slides, if you turn on live captions, Google will display real-time captions at the bottom of your screen as you present to your audience. You'll need to present your slides using Google Chrome. It's only offered in the English language so far. When you're ready, select "Present" and select the "CC" button. Speak into the microphone connected to your computer.
For more information on how to add real-time captions in Google Slides,
