Zoom: Captions for Webinars

Follow the steps below to schedule Live Auto Captioning for a Zoom Webinar once Zoom has been linked to your 3Play Media project.

IMPORTANT NOTE REGARDING SCHEDULING: In order to be able to schedule and set up 3Play Media's Live Auto Captions within a Zoom Webinar you must be the Host of the Zoom Webinar and have a Zoom Webinar license!

Prior to scheduling a webinar..

Step 1- Navigate to Zoom Scheduler

Launch the Zoom application.

Zoom app icon

Navigate to Home and click Schedule.

Step 2- Schedule Zoom Webinar

Set the webinar's Date and Time within Zoom, adding any other information and settings necessary. 
Note that 3Play Media's Live Auto Captioning will work with a password-protected webinar.
Click Schedule.

Step 3- Navigate to 3Play Media's Live Auto Captioning Module

Sign in to 3Play Media and click Live Auto Captioning in the top navigation bar. 


Step 4- Within 3Play Media Click Schedule Live Captions 

Step 5- Select Zoom

Click the Zoom icon.

Step 6- Input Scheduler's Email Address 

Under Show Zoom events scheduled by: enter the email address that was used when scheduling the Webinar within Zoom.

Step 7- Select Webinar

Select Webinar and any upcoming webinars that were scheduled using the email address provided in step 6 will then display.

Click Meeting radio button

Check the box next to the Webinar requiring Live Auto Captions.

Step 8- Configure Live Auto Captions

Start Captions

Once the Webinar is selected note that Start Captions defaults to 15 Minutes Before. This is 3Play Media's suggested setting as it should allow enough time to ensure the captions will display during the Zoom Webinar however it can be adjusted to At Event Start Time, 5 Minutes Before, 10 Minutes Before, 20 Minutes Before, or 30 Minutes Before.

IMPORTANTEvents are scheduled using Eastern Time unless a new timezone has been configured at the user level and configured for users outside of the US-Eastern time zone.

Wordlist (optional)

Click + Add Wordlist to provide any words the inform the automatic speech recognition process.

  • Do not add words with 3 or fewer letters - they will be removed from the list
  • Do not add words with special characters, except for apostrophes and periods
  • When adding a name or short phrase, keep all words together on a single line
  • Wordlists should be under 75 items in length

Once words have been added, click Add Wordlist

Advanced Settings

Click Edit Advanced Settings to adjust the settings below for the Live Auto Captioning event.
If any Advanced Settings are changed from their default values, click Save Changes. 

Maximum Captioning Delay

This will set a delay between the stream we receive and the captions we output. Longer latency will result in a more accurate output.
Defaults to 5000ms (5 second delay) however this can be toggled between a 2-15 second delay

Stream Wait Time
Set an amount of time for our system to wait for the event to begin. Once the determined wait time is reached for the scheduled event and the event has not started, the scheduled captions will no longer be available.
Defaults to 30 minutes

Max Stream Time
Set a maximum time for your live captioning event. This feature can be used as a safety net should a live event not be manually stopped. The Max Stream Time will determine a hard stop for the event as well.

If it is anticipated that a live event may run longer than scheduled, factor this when determining the Max Stream Time. Events in your project can be no longer than the Event Max Time setting.
Defaults to 240 minutes

Note that when a live event stream is manually stopped this will also override the set Max Stream Time and conclude the live auto captions for the event as well.

Save Event Stream
If enabled, the live stream will be saved as the source for the file after the event. This is useful if service upgrades are anticipated. Leave this off otherwise as it incurs extra processing both during and after the event and costs an additional $0.10/min

See more information regarding upgrading Live Auto Captioning files

Profanity Filter
Set a sensitivity level for filtering out offensive words. 

Defaults to Normal however it can be changed to None or Strict.

IMPORTANT: Advanced Settings can be edited up to 5 minutes prior to scheduled start of the Live Auto Captions!

 Step 9- Click Schedule Events

Click Schedule Events once an event or multiple events have been configured.
Once clicked, you'll be redirected back to the an event page within 3Play Media.

An email will also be sent to the email address provided in step 6 fifteen minutes prior to the caption event start time. If the the event starts in less than 15 minutes the email will be sent immediately. The email will contain shortcuts to assist in completing the setup process given Webinars may likely be scheduled far in advance of them actually starting. 

If you have ordered  Live Auto Captions for a webinar that has already start, you will not need to wait for the email as the process can be completed by following the remaining steps below. 

Step 10- Start Zoom Webinar

Go to the scheduled Webinar within Zoom and Start the event.

Step 11- Copy Zoom API Token and Paste within 3Play Media

Within Zoom, click Closed Caption.

Click on the closed caption button in the active zoom meeting
From the menu that appears, click Copy the API token located under Use a 3rd party CC service.

 Copy the API token after clicking on closed captions

Within 3Play Media paste the API token in the Zoom API token field associated with the event scheduled in step 8.

Next click Update.

IMPORTANT NOTE REGARDING THE ZOOM API TOKEN: The Zoom API Token is not a static URL, this can change if a webinar starts and ends and should only be added once the webinar goes live at the time of scheduling.

Step 12- Click Live on Custom Live Streaming Service

Within Zoom click More followed by Live on Custom Live Streaming Service.

The closed captions will be available as an option for all Webinar members shortly after this button is clicked.

Additional Resources



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