In order to publish a video with closed captions, you need to set up a Kaltura player with captioning functionality.
Step 1- Log into your Kaltura account
Step 2- Create a new player
At the top of the page, select the Studio tab and create a new player by clicking New Player- Single Video.
Step 3- Navigate to Subtitles and Transcriptions
Select the Look and Feel tab on the left, as represented by the "eyeball" icon and then click Closed Captions.
Step 4- Choose captions appearance
There are many different captions options you can choose from here. Each of which can be previewed by hitting the Preview Changes button.
Step 5- Click Save Player Changes