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youtube
Live caption requirements
Closed captions refer to the visual display of the audio in a program. In order to add captions to your live event, you need to send captions to YouTube either embedded in the video or through supported software that can send captions over HTTP POSTs.
For live events that appear on US television with captions, captions may be required online as well. You may wish to review the FCC's information on this here: https://www.fcc.gov/guides/captioning-internet-video-programming
Create your Event as you normally would. You must be using the YouTube Live platform.
Sending Embedded 608/708 Closed Captions for a Live Stream
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- At the bottom of the Ingestion Settings tab, there is a Closed Caption section. Select the Embedded 608/708 item in the dropdown menu.
- Hit Save.
- In your encoder settings choose EIA 608/CEA 708 captions, sometimes called “embedded” captions. Depending on your setup, this may read captions from a specific file format or encode them in real time. While the 608/708 standard supports up to 4 language tracks, YouTube currently only supports one track of captions.
最後更新：2017-05-23 03:41:53