Skip to main content
All CollectionsEditing & Export
Using Automated Live Closed Captions & Subtitle Generation.
Using Automated Live Closed Captions & Subtitle Generation.
Updated over a week ago

Live Closed Captioning is an impactful add-on compatible with both Webcam and RTMP webinars. It's important to know that this feature is not currently supported in "Pre-Recorded Live" or straight-to-on-demand webinar types.

For On-Demand webinars without a live portion, you can now generate subtitles automatically through The Lab. These subtitles can be enabled through the standard media player controls.

If you do not see this component available, reach out to to enable the Closed Caption feature:

Once enabled, you will be able to access the new "Live Closed Captioning" component from the Interface Builder and add it to your console for audience accessibility.

Component Configuration:

Language Settings

  • Primary Language: Set the spoken language the speaker will use.
    By default, we will use the language chosen when you build your webinar.

  • Secondary Language: Add a secondary language if speakers will use two languages during the presentation (e.g., English and French).

After adding the component, configure the automated captions by clicking on the gear icon from within the Live Closed Caption component, and selecting Configure.

An appearing window will open on the right-hand side of your screen, with additional options to customize the automated caption experience, available to audience members.

Audience Translation Options

  • All captions through the Live Captioning Component can be automatically translated into a selection of alternate languages.

    Selecting one of the checkboxes below will allow audience members to choose an available alternative during the presentation:

Using Live Closed Captioning in the Presenter Console:

Once Presenters are connected inside the Presenter Console.
Presenters can access and start the Live Closed Captioning before the presentation begins.

Starting Live Closed Captioning.

There are two ways to start Live Closed Captioning:

Manual Start

  • The Live Closed Captioning component can be found on the left side menu Click the [Start Live Closed Captioning] button before the presentation starts.

Auto Start

  • If not started manually, the system will automatically start live closed captioning when the presentation begins.​

Note: Starting live closed captioning requires presenters to be connected to the Presenter Server or for the RTMP stream to be pushed to the RTMP Server. Attempting to start without these connections will result in error messages.

Speaking Language:

  • Speaking Language Indicator: Displays the language detected in the audio stream.

Live Closed Captioning in the Audience Interface:

Before the presentation starts, audiences will see the Live Closed Captioning component in a pre-start state. Once the presentation begins, the closed captioning will appear in real-time:

On-Demand Webinar Subtitle Generation:

For webinar types where there is no live component, such as "media file" or past recorded webinars already on-demand, subtitles can be automatically generated and made available to audience members through the standard media player controls.

To ensure subtitles are generated for your on-demand webinar, be sure to select the "Auto Generate Subtitle" option when setting up your webinar, or enable it on the general settings page:

Generating Subtitles Through The Lab:

  • After the presentation, navigate to The Lab, and look under the Closed Captioning tab for the "Generating subtitles" message. If the Auto Generate Subtitle option was not checked, or captions aren't available, a generate subtitle option will be available:

    Clicking "Generate subtitle" will begin the subtitle generation process:

  • Once the generation is complete, the auto-generated subtitle track will be listed:

By default, the auto-generated subtitle track is not active!

Review and enable the newly created captions by selecting the pencil icon.
You can perform any caption edits required, and then select the "active" check box provided.

An additional download button is provided under the "active" button, to download the generated captions for offline editing or archival as well!

As a final step, be sure to click on the "Publish" button after activating or editing your subtitles, to push through the most recent edits and make captions available to your webinar audience.

For further assistance, contact us through chat or send us an email at

Did this answer your question?