About
The Audiotracks module lets media owners upload and manage alternative audio tracks, such as dubbing and recorded audio descriptions (AD), so viewers can switch between audio tracks during playback.
When enabled, the Audio tracks section is available on the Accessibility tab of the media edit page.
Configure
1. Go to your Configuration Management console and click on the Audiotracks module. You can also navigate to it directly using a link: https://{your_site_URL}/admin/config/tab/audiotracks.

The Audiotracks page displays.

2. Set enabled to 'Yes' to enable the module.
3. Click Save.