You can enable a similar feature by going to Settings > Accessibility > Live Caption . Once on, captions appear automatically whenever speech is detected in your Rumble app.
If the creator didn't upload a subtitle file, you won't see a "CC" button on the Rumble player. However, you can use your browser or device to generate them for you:
This is the most reliable "hack" for Rumble. Open Chrome Settings > Accessibility and toggle on Live Caption . Chrome will then automatically generate English text in a movable box at the bottom of your screen for any Rumble video you play.