Term: Open captions

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Term: Open captions

Definition:

Non-XML timed text intended for display over a timeline, in synchronization with image and sound essence, usually written in the same language as the sound essence and permanently embedded or integrated into the video stream. They cannot be delivered in a sidecar file. Like closed captions, open captions are designed for viewers who are unable to hear or who have difficulty hearing the audio in a video. They are always on view and cannot be turned off. Open captions allow flexibility in selection of font family, size and color, along with free positioning over the video image.

Benefits of Open Captions:

• No special functionality for media players or streaming platforms needed to be able to display the captions so it is a good option if using a platform that doesn't have closed captioning functionality.
• Open captioning is a good option when there are physical restraints to turning captions on and off, like in various exhibition scenarios.
• Flexible font style and positioning before embedding into video.

Potential drawbacks of Open Captions:

• Open captions are embedded directly into the video stream and cannot be turned off which can be challenging for viewers if they don't want them.
• Because the captions are embedded into the video stream, they are not easily editable.
• The quality of open captions is also tied to the quality of the video or stream. If the video or stream is blurry or low-quality, the captions can also be blurry and may be difficult to read.

Category:

Video

See also:

Closed captions; Subtitles