Customizing Your 3Play External Webpage Display for Captions

3Play offers a webpage to provide directly to your audience which renders the live transcript and new captions produced during your live event. This is known as Second Screen caption delivery and is a common presentation method for CART captions.

Prerequisites

• You must have a live captioned event scheduled prior to being able to customize your external web page for captions. 
• This service is not available to express customers. 

The External Webpage URL is available on the righthand side of the Event Details page for your event. Simply copy the URL, paste it into your browser to view, and you'll be able to access your live event transcript in real-time. Share the same URL to your audience to view the live transcript and captions produced in real-time. 

As with the 3Play Embed, parameters can be appended to the External Webpage URL to adjust the display of captions in the form: &param_name=param_value

The following parameters are available to customize the presentation of captions on the External Webpage. Multiple parameters from the list below can be added to the URL by appending the ampersand after the previous parameter value, e.g. &param_name1=param_value1&&param_name2=param_value2.

Example

https://p3.3playmedia.com/live-asr-client-v1/external_webpage_with_captions.html?key=0FGZmhAQto8MbCgm&show_complete_transcript=true&stream_start=1667065500&use_uppercase=0

Uppercase Captions
By default, captions for live events are uppercase. If this param is deactivated, captions will be displayed in sentence case, e.g. &use_uppercase=0.

Default Value:active
param_name:use_uppercase
param_values:

• • 0 to deactivate
  • 1 to activate

Caption Lines
By default, 2 lines of options will be displayed. This parameter can be modified to any number greater than 1, e.g. &line_count=3.

Default Value:2
param_name:line_count
param_values: [any integer]

Show complete transcript
Use this parameter if you want to display the entire caption history (CART captioning), e.g. &show_complete_transcript=true. This allows your audience to access all captions from the event instead of replacing them with the most recent captions. This can be used together with the line_count parameter, and a scroll bar will automatically appear to display the previous captions.

Default Value: deactivated
param_name:show_complete_transcript
param_values:

1. • false to deactivate
   • true to activate

Accessibility Menu (available as of May 2023) 
The Accessibility menu will let your audience customize the way captions display on the External Webpage URL, including adjusting: font size, font family, both font & background page color, as well as display mode (standard or full screen/presentation mode, which eliminates margins on the page). The menu is displayed by default; to remove the Accessibility Menu, remove the  "&show_accessibility_menu=true" parameter from the URL prior to sharing with your audience.  

Default Value: activated
param_name:show_accessibility_menu=true
param_values:

1. • false to deactivate
   • true to activate

Font Family

Update the font family to one of the options below; by default Arial is used. Note, the browser will replace the space, e.g. &font_family=tahoma,%20sans-serif.

Default Value: arial, sans-serif
param_name:font_family=<value>
param_values:

1. • arial, sans-serif
   • comic sans ms, comic sans, cursive
   • courier new, courier, monospace
   • georgia, serif
   • tahoma, sans-serif
   • times new roman, serif
   • trebuchet ms, sans-serif
   • verdana, sans-serif

Font Size

Update the font size to one of the options below; by default 14 is used, e.g. &font_size=14px.

Default Value: 14px
param_name:font_size=<value>
param_values:

1. • 14px up to 50px

Font Color

Update the font color to one of the options below; by default black is used, e.g. &font_color=black.

Default Value: black
param_name:font_color=<param_value>

Background Color

Update the background color to one of the options below; by default white is used, e.g. &background_color=white.

Default Value: white
param_name:background_color=<param_value>

Things to be aware of:

• The External Webpage is available for all 3Play Live captioned events regardless of integration, production, or delivery method.
• The URL is unique to each live captioning event scheduled in 3Play and can support up to 5k concurrent viewers of the External Webpage.
• Zoom event captions may be viewed on the External Webpage without inputting a Zoom Captions API Token.
• When providing the External Webpage URL to event participants, we recommend using a URL-shortener (such as the free version of Bitly).

Browser Support:

The Second Screen Webpage is supported on the following browsers:

• Chrome >=94

• Firefox >=92

• Edge >= 94

• Safari - latest version

• Internet Explorer 11