Overview


Closed captions are transcriptions of the words spoken in a video/audio. Closed captions can be used to add clarity to video and audio files. Moreover, it increases the searching ability and also assists those with hearing disabilities, making VIDIZMO a 508 Compliant. VIDIZMO supports Closed Captions (CC) for audio and video files. These can be added from the Media Settings either accessed from Media Manager or while uploading media.

VIDIZMO also renders automatic, machine-generated transcriptions from transcoding providers such as Azure Media Services. In AMS, the encoding engine is called the Processor which uses the Dynamic Packager and the Indexer to transcode the media. The Dynamic Packager performs Transcoding, while the Indexer enables you to make the content of your media searchable and to generate a full-text transcript for closed captioning and keywords.

To learn more, refer to the on how to Enable AMS' Machine Generated Transcriptions in VIDIZMO.

The transcription pane is available on the right side of the playback page when there is a closed caption associated with the media (either manually uploaded or automatically generated).

To learn more, refer to the article on Understanding Transcription Pane in VIDIZMO.

VIDIZMO supports WebVTT format for closed captioning, which provides closed captions for video content, content navigation, text video descriptions, and any other metadata aligned with audio or video content.

Follow the steps below to add closed captions to an audio/video file.


Steps


Here are the steps to add closed captions to your video:

I. Log in with a Contributor+ role and click on the Add New Media (+) icon at the bottom right-hand corner.


II. You will be redirected to the Add New Media page. Click on Upload Video to upload your files.



III. Upload your video(s) here.



IV. Once uploaded, go to the Media Settings in the Media Manager and fill out the necessary details.

For detailed steps on other tabs under the Media Settings, click here on How To Upload Media.

V. Now, follow these steps to upload captions:

1. Click on Timed Data tab.
2. If you have the corresponding caption file in VTT format, then upload it by clicking on choose file button.
3. Make sure you select Closed Caption from the Timed Data Type drop box and the relevant language of the caption file from select language drop box.
4. You can also find the details of the transcription file on the right side.
5. Click on save and close.



VI.  If you also want the closed caption transcript to be displayed beside the video player, with the ability to search within the transcript:

1. Click on the Publish tab

2. Enable the Display All Insightsoption using the checkbox

3. The Save button saves your settings. Alternately, use the Save and Close button if there are no more settings to be defined for this video.


Upon saving, the video will be queued for processing.


VII. Once, the processing is complete, the video becomes available on the Portal's Homepage and the Portal's Library. Select the video for playback. 


You will now be able to see the captions on the video and on the right side of the video as well. This is searchable for anyone who is looking for something particular within the video.

Also, you can quickly jump to certain sections of the video by clicking the relevant text in the box.


Note: The transcription pane only appears when the Display All Insights checkbox is checked and when there is a closed caption file associated with the media (either uploaded manually or generated automatically).


Re-uploading a Closed Captions file

There are instances, such as file corruption, modification to the transcript or corrections, which require the closed captions file to be re-uploaded. In such a case, you can select the video from the Media Manager and perform steps 4 and 5 as described in the previous section but this time you would need to remove the existing closed captions file first.


Here's how you can do it:

I. Select your video:

1. Either from the Homepage, the Media Manager or use the search bar and enter related keywords to locate your video.

Once found, click and open the settings.


II. Clicking on Timed Data Tab.

1. Click on “x” on the right pane where the caption file is shown. This removes the caption file. 

2. Now upload a new file.

       3. Click on Save and Close.

On the Playback screen:

1. Click on the CC icon on the player controls to enable on-screen closed captions.
2. The Sub-titles/ Closed Captions get displayed on the video.


You can also enable auto-transcribing option for your own videos by:

  • Going to the Media Manager through the Admin tab from the navigation pane.
  • Click on the overflowing menu icon of the desired video
  • Choose Process.


  • Click on Transcode checkbox.



Once the process is completed, the system will auto-generate captions for the video based on a 3rd party AI Tool.

Roles and Permissions

It is important to note that, in VIDIZMO EntepriseTube, all Contributor+ can add Closed Captions. However, in VIDIZMO DEMS, All Contributor+ roles can do the same except Admins.


Contributions were made by Kashif Qasim & Sarah Hussain.

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