People who are blind, people with low vision who cannot see the screen, as well as those with cognitive limitations who have difficulty interpreting visually what is happening within Video content will often use audio description of the visual information. The Audio description of video provides information about actions, characters, scene changes, on-screen text, and other visual content.
For further information on Audio description accessibility please refer to the WCAG website here https://www.w3.org/WAI/WCAG21/Understanding/audio-description-prerecorded.html
The opportunity to include the audio description track within your Vudoo videos is available to ensure you are able to provide people who are visually impared or blind access to your video content. Once the track is uploaded, the viewer will have the option to select this function on the video. The Audio Description file must be previously created prior to this process, the Vudoo platform does not create the audio description for videos.
Tip: The audio description needs to provide contextual information relating to what is happening on-screen as well as the original/default track in one audio stream
Uploading an Audio Description track to your video
Within the Vudoo editing suite, under the Interactions tab, ‘Audio Tracks’ will be available for selection
Info: Viostream, Ooyala and Brightcove do not have audio tracks function
When selecting this, a ‘Drag and drop’ option will be presented to allow for the Audio description file to be uploaded at this point
Info :Your Audio Description must be in MP3, MP4, MOV and WAV file and must not be larger than 5GB
There is an option to drag and drop the file or to select the ‘Choose file’ button, which will open up from the local computer file selected
Tip: Audio track will be required to be the same duration as the video or longer
Select ‘open’ once the correct file is chosen
Information on the Audio track will be prompted within the next screen, requiring a language of the audio description to be selected
Tip: If the specific language is not listed within the list provided, there is an option to select ‘Custom’ and add the name of the specific language as required
The type of track will also be required to be selected - Audio Description, Audio translation or Audio Commentary
Info : Both the language and the type of track will be available for the viewer to select from when watching the video, so be sure to provide this information.
Select ‘add track’ once this has been completed
The Audio description page will then provide a list of all the tracks that had been uploaded for that particular video
It can be previewed by selecting ‘preview’ relating to that specific audio track
It can be edited by hovering over the required track and select ‘click to edit’ - replacing the file, deleting and editing the language or the track will be available at that point
Select the track that requires to publish by ticking the checkbox next to the specific track, or by choosing ‘Select all’ along the top bar options to select all the tracks uploaded
Select ‘Publish’ to publish the track/s chosen or select ‘unpublish’ or ‘delete’ if the track is no longer required
Each track will show ‘unpublished’ or ‘published’ to share the status of the tracks
Once finished and the tracks are all selected to be published that are required, select ‘Im done’
Tip: The ‘sort by’ option will allow you to sort the tracks in a specific order if required
In the output, the video will show a microphone icon in the bottom right corner, next to the closed captions if they are included within the video, the viewer can then select the audio description track specific to their requirements.
Info: Legacy video will have audio tracks widget only if they were uploaded after June 30th 2020 and are M3u8 videos
Help: Still stuck? Our friendly team is on hand to help at <support@vudoo.com> or call 1300 4 VUDOO.