To add Closed Caption to audio asset following the steps below:
Step 1: Navigate to on-asset option of an audio asset
Step 2: Click on subtitles and captions
Step 3: Click on submit to Auto-Captioning
Step 4: Select the subtitles language from the drop-down menu
Step 5: Once completed, click on edit and publish
Step 6: Edit your subtitles and click on publish closed captions
Step 7: Click on CC in audio player to enable closed captions while listening to audio asset
And that’s it! You have successfully added closed captions to your audio file!