4.5

105Compressor User Guide
• SRT (SubRip Text) subtitles: SRT subtitles can be used to deliver foreign-language
translations or a transcript of dialog, narration, or audio descriptions to people who
are deaf or hard of hearing. SRT subtitles, which use the .srt filename extension, offer
more limited formatting options than CEA-608 captions. In Compressor, you can
specify whether to let viewers turn SRT subtitles on or off (for example, for full foreign-
language translations) or force subtitles to appear onscreen (for example, for specific
characters in a movie who speak a different language).
In Compressor, many built-in settings and destinations support captions, including Apple
Devices (in both the H.264 and HEVC codecs), ProRes, Create DVD, and other settings that
use the QuickTime Movie, MPEG-2, and MPEG-4 formats.
This section covers working with captions in a standard batch in Compressor, including
how to import, edit, and export captions.
You can also add captions to an iTunes Store package. See Intro to iTunes Store packages
in Compressor.
Note: Compressor is not a captions-authoring tool. To create CEA-608 closed captions,
iTT subtitles, or SRT subtitles from scratch, use Final Cut Pro or a third-party captions-
authoring app to output a .scc text file, a .itt text file, or a .srt text file, then import the
captions file into Compressor.
Import and preview captions in Compressor
In a standard transcoding job in Compressor, you can add a single set of CEA-608 closed
captions, iTT subtitles, or SRT subtitles by adding a .scc file, a .itt file, or a .srt file to the
job. If a source video file already has embedded CEA-608 closed captions, when you add
the source file to a batch, Compressor extracts the .scc data for you.
Note: In an iTunes Store package, you can add multiple CEA-608 closed caption sets and
multiple iTT subtitle sets (in several different languages, for example). For information
about adding closed captions and subtitles to iTunes Store packages, see Build iTunes
Store packages using Compressor.
Add a captions text file to a job
After you add a job to Compressor, you can add a captions text file created by a third-party
app.
1. In the Compressor batch area, click Set on the right side of the Captions row.
2. In the window that appears, select a CEA-608 closed-caption file (with a .scc filename
extension), an iTT subtitle file (with a .itt filename extension), or an SRT subtitle file
(with a .srt filename extension), then click Open.
Note: In a standard Compressor job, you can import only a single .scc file or .itt file.
The row under the Captions heading in the batch area displays the filename of the imported
captions file.