About
In Kaltura Management Console (KMC), you can upload and manage extended audio description (EAD) files for your media.
Extended audio description files are time-coded text files that the player converts into spoken narration using browser speech synthesis. They support accessibility for viewers who rely on audio descriptions to follow visual content.
Add an extended audio description file to an entry
- Log into your KMC account. The Entries page displays by default.
- Click on the desired video.
- In the left panel, click the Captions tab.
- Click +Add Extended Audio Description.
- Complete the following:


The edit details displays.


The 'Add Extended Audio Description' box displays.

- Label - Review the label. The label is pre-populated and will have a suffix to clearly identify the file as extended audio description.
- Language - Select the language.
- File type - The file format is fixed and can’t be changed
- Accuracy - The default value is 100%. If the entry has multiple captions for the same language, the player displays the file with the highest accuracy.
- Add caption - Choose how to add the extended audio description file:
- Upload File - Upload a VTT file from your computer.
- From URL - Provide a direct URL to a VTT file hosted externally.
6. Click Add File.
The file displays in the table.
To add additional files repeat these steps.
Editing actions
After you upload an extended audio description file, you can manage it using the three-dot menu at the end of the file row.

Edit label or language
- Click the three-dot menu next to the extended audio description file and select Edit.
- Update the label or language.
- Click Done.
Edit extended audio description content
Click the three-dot menu and select Extended Audio Description editor.
The editor opens with the selected extended audio description file.
For more information, see Edit extended audio description files in KMC.
Download an extended audio description file
Click the three-dot menu and select Download.
The file downloads to your device.
Preview an extended audio description file
Click the three-dot menu and select Preview.
The VTT file displays for review.
Delete an extended audio description file
- Click the three-dot menu and select Delete.
- Confirm the deletion.
Deleting an extended audio description file doesn’t affect caption files. Captions and extended audio description are managed separately.