Kaltura: Editing captions using the Kaltura Caption Editor

This video and the following article demonstrate how to edit captions using Kaltura's built-in caption editor. 

Kaltura: Editing captions using the Kaltura Caption Editor

Recorded 4-14-2020

Description of the video:

[music] In this video, I'll be demonstrating how to edit captions in Kaltura's caption editor. To get started, you'll first want to make sure you're logged in to Kaltura at kaltura.iu.edu. Once you're logged in, to access your uploaded videos, in the upper right corner of the Kaltura site, click on your name. In the menu that appears, click on My Media. The My Media page will load. From here, you'll want to click on the title of the media you want to edit captions for. Once the media loads, to access the caption editor, underneath the media player, click on Actions, then in the menu that appears, click on Caption and Enrich. A table containing all the caption tracks available for the media file you're working with will appear. The fidelity of the caption file is indicated by the "service" category. If the service category lists "professional," those captions were completed by a human. If the service category lists "machine," those captions were completed mechanically. To make edits to the captions, click the Edit icon to the far right of the row for the captions you want to edit. The caption editor will load. On the left side of the screen your captions are displayed, and on the right is a small video player that you can use to preview your captions. To edit a specific caption, hover over the caption you want to edit, and then click in the text box to activate it. Once you see the blinking cursor in the caption, you can make edits to the text displayed. To edit a caption's timestamp, again, you'll want to hover over the caption, then click in the timestamp field and make changes to the timecode. If this results in overlapping captions, Kaltura will highlight the overlapping captions. If you want to search for specific text, at the top of the caption listing, click the Search in Captions field, then type the text you want to search for and press Enter to search for the text. To find and replace text in captions, in the search field, type the text you want to replace. Then, in the Replace with field, type the text you'd like to substitute for the term in the search field and click the Replace button to the right of the Replace with field. For videos with multiple speakers, you'll want the captions to indicate who's speaking at what time. To do this, first, select the captions you want to add a speaker to. Next, in the Add speaker to selected items field, type the name for your speaker. Finally, click the Add button to the right of the speaker field to add a speaker to the selected captions. When you've completed making edits to your captions, click the Save button near the upper right side of the Kaltura window to save your changes. [music]

Download and edit captions or transcripts in Kaltura

On this page:


Creation of closed captioning for media is now available directly in the Kaltura interface. Fully automatic (mechanical) captions will be created by default for any new media loaded into Kaltura. You may order mechanical captions for existing content without a fee. For a fee, you may order more accurate, human-edited (professional) captions.

  • Mechanically generated captions are not of sufficient quality to be suitable for the hearing impaired and should not be used for this purpose. They are intended to be a base for creating accurate captions via the captions editor and to facilitate search, interactive transcripts, and other features. For more, see Edit captions.
  • You'll need to remove captions before trimming the video; see Trim a video in Kaltura. Be sure to do all necessary trimming before ordering professional captions.

Order captions

Professional fidelity captions are not free. If you do not have an existing relationship with the captioning service, contact atac@iu.edu to set up an account. For more, see About the Kaltura REACH captioning service.

Download transcripts

  1. Log into Kaltura.
  2. Click your name at the top right and select My Media.

    My Media link

  3. Click the media for which you wish to download a transcript.
  4. Just below the media, you will find the transcription widget toolbar. Click the Download icon to download the transcription file.

Download caption files

  1. Log into Kaltura.
  2. Click your name at the top right and select My Media (see Download transcripts).
  3. Next to the media for which you want to download caption files, click Actions and select Edit from the drop-down menu.
  4. Just below the media, click Captions.
  5. Under the "Captions" section, click the Download icon next to the caption file you wish to download. It will be in the DFXP (Distribution Format Exchange Profile) format.

Edit captions

  1. Log into Kaltura.
  2. Click your name at the top right, and select My Media (see Download transcripts).
  3. Click the media for which you wish to edit captions.
  4. Click the Actions drop-down menu, and select Caption & Enrich.

    Caption and Enrich link

  5. The resulting table will display one row for each of the recording's caption tracks. The Edit icon is displayed for all completed captions. Click Edit in the right-most column to edit the desired captions.

    Edit button

  6. The caption editor will open. Edit the desired caption in the text field at the center of the page.

    Editor text box

  7. To edit the timestamp of each line, click the desired timestamp to modify the time. The editor will highlight any overlapping time.

    Edit timestamp

  8. To find and replace text:
    1. Enter your search term in the "Search in captions" box (see the search step, above).
    2. Enter your replacement term in the "Replace with" box.

      Replacement text box

    3. Click Replace.

      Replace button

  9. To add a speaker ID:
    1. Select the rows you want a speaker added to.
    2. Enter your speaker ID in the "Add speaker to selected items" box.

      Add Speaker text box

    3. Click Add.

      Add button

  10. When you are finished making edits, click Save.

Learn more

For help, contact your campus Support Center.