Unfortunately, automatic live captioning is not available in Zoom. However, automatic captions are visible if you record a Zoom session. As needed, please review these alternatives:
Microsoft Translator is available as an add-in to PowerPoint which enables live subtitles during presentations (including within Zoom). For more information, see Using Microsoft Translator in a presentation. Be sure to practice with a friend prior to a live event.
For students who are blind or have low visibility, narrate the material that you’re displaying visually on the screen. Just as you might read material aloud in class, read material that you share on-screen in case students are not able to see essential text.
Review closed captioning options. Automatic closed-captioning is not perfect. Speak clearly and slowly to make the content as accurate as possible. If using a tool other than Zoom for recording your lecture, consider uploading your videos to YouTube to take advantage of their automatic (though not perfect) closed-captioning.