Final Cut Pro X: Import captions
You can import CEA-608, iTT, or SRT caption files directly into your project. Each caption has text content and formatting information, as well as start and end times that Final Cut Pro uses to place the caption at the correct point in the timeline.
You can also import source media files that have embedded CEA-608 captions and then extract the captions for use in your Final Cut Pro project.
Import captions directly into a project in the timeline
Open your project in the timeline.
Choose File > Import > Captions.
In the dialog that appears, navigate to the file you want to import, and select the file.
The file must be a valid CEA-608, iTT, or SRT caption file. CEA-608 files have the filename extension .scc, iTT files have the filename extension .itt, and SRT files have the filename extension .srt.
In the Import as Role section, click the pop-up menu on the left and choose a caption role, then click the pop-up menu on the right and choose a language subrole.
In the Insertion Time section, select one of the following:
Relative to Timeline: Positions captions in the timeline by adding the project’s start time to each caption’s start time.
Absolute: Positions captions in the timeline at each caption’s start time, regardless of the project’s start time.
The imported captions appear in a caption lane at the top of the timeline.
Import a media file with embedded CEA-608 captions
Import the media file that contains the embedded captions.
Clips with embedded captions have a caption icon in the browser and the timeline.
Do one of the following:
Choose Edit > Captions > Extract Captions.
Control-click the clip and choose Extract Captions.
The extracted captions appear in a caption lane at the top of the timeline. They are assigned a CEA-608 caption role and a language subrole based on the preferred language setting in the Language & Region pane of macOS System Preferences.