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To add automatic captions to an English-language YouTube live stream, open YouTube Studio’s Live Control Room, enable Closed captions, choose Automatic captions, and set the video language to English. Configure this for each stream before going live. The option requires normal latency and may not be available on every channel.
Turn on automatic captions before you go live
- On YouTube, select Create → Go live.
- Choose Stream from the left menu.
- In the stream settings, turn on Closed captions.
- Choose Automatic captions as the caption source.
- Set the video language to English, then finish configuring your stream and go live.
YouTube applies this setting to an individual live stream, not to the channel as a whole. Check it again when setting up another stream. YouTube’s interface labels can change; see YouTube Help: Use automatic captioning.
Requirements and limitations
English audio and normal latency
YouTube Help says automatic captions for live streams are available in English only. They also require normal latency. YouTube describes normal latency as suitable for non-interactive streams and as offering the lowest amount of viewer buffering; it is not the best choice if your format depends on near-real-time audience interaction. See YouTube’s explanation of live-stream latency.
Availability depends on the channel
The setting may not appear because YouTube is rolling out the feature to channels gradually. Its troubleshooting guidance describes rollout to channels with more than 1,000 subscribers, but meeting that threshold does not guarantee the option will be available. If you cannot find the caption-source control, check the channel’s eligibility, the stream’s English language setting, and normal latency.
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Audio affects recognition
Automatic captions can be missing or inaccurate when the sound is poor, speech is difficult for YouTube to recognize, speakers talk over one another, or multiple languages are spoken at the same time. Use a clear, steady speaking voice, reduce background noise, and avoid overlapping speech where possible. YouTube cautions that automatic captions can misrepresent speech and recommends professional captions first when accuracy matters.
Troubleshoot captions that are missing or inaccurate
- The option is missing: Check whether YouTube has enabled the feature for the channel, whether the stream language is English, and whether latency is set to normal.
- Captions do not appear during the stream: Confirm the stream is using automatic captions and check that the audio is clear, recognizable speech without heavy overlap or simultaneous languages.
- Captions contain errors: Improve microphone clarity and reduce background noise and interruptions. For content where errors could materially affect understanding, use a professional caption workflow instead of relying on automatic recognition.
Do live captions stay on the replay?
No. YouTube says live automatic captions do not remain on the replay. After the stream, YouTube processes the video as a video on demand and generates a separate caption track, which may differ from what viewers saw live. If replay captions need to be dependable, review the replay’s caption track separately.
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Other ways to supply captions
Embedded captions from an encoder
You can configure Live Control Room for embedded 608/708 captions and set up an encoder to send EIA 608/CEA 708 captions. YouTube currently supports one caption track per stream, even though the caption standard can carry more. See YouTube’s live caption requirements.
External caption feed
For an event, you can enable closed captions in the stream setup and use YouTube’s captions ingestion URL with supported captioning software. Each stream entry point can have one caption feed. The ingestion URL is signed, so treat it as a private delivery credential and share it only with the caption provider that needs it.
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YouTube’s guidance names Total Eclipse, Case CATalyst, CaptionMaker, and StreamText.Net. Check with the provider and verify compatibility with your stream setup before relying on a particular tool.
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