Add chapter markers, subtitles or closed captioning, or audio description to uploaded videos

Version: Kora Courses, January 16, 2024 or later
Permissions required: Student

Adding chapter markers

According to the World Wide Web Consortium (W3C), an essential aspect of making web video content accessible involves structuring content so that “The user can navigate by semantic structure such as by chapters or scenes” (source). Adding chapter markers to uploaded video makes it navigable in the way the W3C describes.

  • Select your video and click Settings (1) to open the video control panel. Then, click “Edit” (2) next to the Accessibility information.

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  • Click the drop-down “Advanced Options” (3) and then click “+ ADD” (4) below the chapters section.

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  • Select “UPLOAD FILE” (5).

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  • Choose the file to upload (6).

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  • The selected file is listed (7) in the upload screen. Next, click “UPLOAD” (8) to upload your chapter marker file.

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  • When the upload is finished, the uploaded chapter marker file is displayed under 'Chapters' (9) in video settings and in 'Advanced Options' (10) in accessibility information. To delete the uploaded file, click the delete icon" (11).

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  • Click Chapters (12) to see the video chapters.

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Adding subtitles or closed captioning

According to the W3C, captions and subtitles “provide content to people who are Deaf and hard of hearing. Captions are a text version of the speech and non-speech audio information needed to understand the content. They are synchronized with the audio and usually shown in a media player when users turn them on” (source).

  • Select your video and click Settings (1) to open the video control panel. Then, click “Edit” (2) next to the Accessibility information.
  • If no captions are available, it is displayed with a yellow label under video settings as 'Missing Captions' (3).

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  • Click “+ ADD” under Captions / Subtitles (4).

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  • Select “UPLOAD FILE” (5).

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  • Choose the file to upload (6).

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  • The selected file is listed (7) in the upload screen. Next, click “UPLOAD” (8)  to upload your VTT subtitle file.

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  • When the upload is finished, the uploaded captions file is displayed under 'Captions / Subtitles' (9). Select a language (10). To delete the uploaded file, click the delete icon" (11).

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  • When the upload is complete, the subtitle file is displayed under 'Captions / Subtitles' (12) in video settings, and the yellow label indicating missing captions is removed.

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  • Click Closed Captions (13) to view closed captions during playback.

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  • Use the configuration options under 'CAPTION' (14) to set styling attributes such as position, font family, font size, font color, alignment, padding, background color, and background opacity.

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Adding audio description

According to the W3C, audio description “provides content to people who are blind and others who cannot see the video adequately. It describes visual information needed to understand the content, including text displayed in the video” (source).

Please note that an audio description track will be played along with the video’s original audio. Viewers cannot turn off the audio description. We therefore recommend that you upload two videos: one with the audio description and one without.

  • Select your video and click Settings (1) to open the video control panel. Then, click “Edit” (2) next to the Accessibility information.

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  • Click the drop-down “Advanced Options” (3) and then click “+ ADD” (4) below the Audios section.

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  • Select “UPLOAD FILE” (5).

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  • Choose the file to upload (6).

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  • The selected file is listed (7) in the upload screen. Next, click “UPLOAD” (8) to upload your audio file.

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  • When the upload is finished, the uploaded audio file is displayed under 'Audios' (9) in video settings and in 'Advanced Options' (10) in accessibility information. Select a language (11).
  • To delete the uploaded file, click the delete icon" (12).

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  • Click 'Mute/Unmute' (13) to listen to the added audio during playback.

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