You can change how subtitles appear to make them easier to read. According to AbilityNet , you can choose from several preset styles or create your own:
: Check the box for "Prefer closed captions and SDH" to automatically show English subtitles whenever they are available.
If you are using a version of Big Sur that supports it, or have updated to more recent macOS versions, you can use Live Captions . This feature provides real-time text for any spoken audio on your Mac, including FaceTime calls or web videos, regardless of whether they have pre-made subtitle files. How to customise subtitles and captions in macOS 11 Big Sur Big Sur subtitles English
: You can also toggle "Show automatically when languages do not match" to have subtitles appear only when the video audio differs from your system language. Visual Customization
: Click the Apple logo in the top-left corner and select System Preferences . Accessibility : Choose the Accessibility icon from the menu. Captions : Select Captions from the sidebar on the left. You can change how subtitles appear to make
The operating system (macOS 11) allows you to customize and manage English subtitles and closed captions through its accessibility settings. You can set global preferences that apply to system apps like TV and Safari, ensuring that dialogue is always accessible. Managing Subtitles in macOS Big Sur
: Choose from Default , Classic , Large Text , or Outline Text . This feature provides real-time text for any spoken
: Click the "+" (plus) button to create a custom look, where you can adjust the font, size, color, and background opacity. Feature Highlight: Live Captions