Captions display onscreen text within a video to provide additional or interpretive information for viewers. Caption text may include:
- Transcription of the spoken dialogue or narration
- Speaker identification
- Manner of speaking
- Sound effects
- Music description
Add captions to your video when:
- Viewers are deaf or hard of hearing
- Viewers are in an environment where audio is not available
- Viewers are nonnative speakers, cannot understand the speaker's accent, or the speech is not entirely clear (subtitles)
- Click the Audio FX tab.
- Drag the Captions effect onto an audio clip on the timeline.
- The caption track appears on the
timeline. By default, captions are divided into four-second segments and
span the entire duration of the audio clip. Click the first caption
segment. The caption editor appears over the canvas.
- As the audio plays for the caption
segment, type the caption text. The playhead stops at the end of the
- To repeat (loop) the audio for the current caption segment,
press Enter or click the Replay Segment button.
- To move to the next caption segment, press Tab or click the
Next Segment button.
- To learn how to write ADA compliant captions, see Caption writing tips.
- To repeat (loop) the audio for the current caption segment, press Enter or click the Replay Segment button.
- To adjust how long the caption
segment displays within the video, drag the duration slider in the caption editor. The duration (in seconds) for the selected caption
segment appears under the slider. The default duration is four seconds.
- Continue steps 3-5 until captions are added for the entire audio clip.
Change the Caption Duration
By default, captions are divided into four-second segments and span the entire duration of the audio clip. The caption duration must be between two and seven seconds to be ADA compliant.
Click to select a caption segment. The caption editor appears.
Drag the duration slider in the caption editor. The duration (in seconds) for the selected caption segment appears under the slider.
Export a Video with Captions
If the timeline includes captions, the captions appear in your final video by default. The type of caption display depends on the export option you select.
- With closed captioning, viewers have the option
to turn the captions on or off. Closed captions are available in the
YouTube, Flash and local export, and Screencast.com share options.
- With open captioning, the captions are always
visible or "burned-in" to the video. Open captions are available in the
iTunes and Advanced Export share options.
By default, captions are automatically exported in the supported file formats. To disable captions when exporting a video, click the Caption Options button and select Disable Captions from the dropdown. With this option, captions are still saved to the Camtasia project, but are not included when exporting the final video.