Kaltura – How to Request and Edit Your Captions

About Captions & Videos used in your Course

If you are an instructor in a course that uses Canvas or if you share videos from Rutgers MediaSpace, you may wish to notify your students to report any errors to you. Include a note in your syllabus that all captions are machine-generated and to contact the instructor regarding inaccuracies.

Automated captions, powered by Verbit, are enabled in Rutgers MediaSpace, powered by Kaltura. When a video is uploaded to MediaSpace via the standalone website or through Rutgers Canvas, captions are generated using automatic speech recognition. This service provides 70-95% accuracy. Video owners will need to review and edit their captions to increase accuracy.

How to Find your Caption Editor

Log into Rutgers Canvas or Rutgers Mediaspace.
Access My Media by one of these methods:
1. Mediaspace –

In Rutgers Mediaspace, click on your account name (1), then click My Media (2) in the user menu. You may also access My Media in the top navigation menu (3).

1. Canvas –

In Canvas, click on Account (1), then click on My Media (2).

You may also access My Media in your Canvas course navigation.

If My Media is not in the course navigation, ask the course owner to enable it through the course settings.

Access the captions editor by one of these methods:
1. Click the edit button for the video entry.
2. From the video entry details page, click Actions (1) menu for an entry and then click Edit (2).

Click the Captions (1) tab for the entry. Then click Edit Captions (2).

Video owners and editors may use the Actions next to each caption for advanced options. Actions include setting the caption as default if more than one exists (1), to edit a particular caption (2), to delete a caption (3), to download the caption file (4), and to hide the captions so they do not display on the player (5). The latter option is recommended so that instructors can hide the low accuracy caption file until they have been completely reviewed and edited.

The caption editor is launched in the same browser window.

The process outlined below is only needed for video entries that:

Require non-English captions.
Require high fidelity captions.
Were uploaded during a system event and automated captions were not requested.

From the video detail page, click on Actions below the video to expand the drop-down menu.
Click Caption and Enrich.
Scroll down to the Order Captions & Enrichment Services section.
Use the drop-down menus to select the options for Service (A), Source Media Language (B), Feature (C), and Turnaround Time (D). Enter special instructions (E) to include jargon and technical terminology.
Click Submit (F).

Editor Overview

The editor is comprised of two parts. The left pane contains the caption selector (1), search (2) and replace (3) tool, add speaker name tool (4), and the transcript with editor and timestamps (5). The right pane contains the video (6) and player controls (7). Once captions are edited the Save (8) button will be active.

Change Caption File

If there is more than one caption file for the entry, select caption file to be edited from the Captions drop-down menu (1 above).

Edit the Timestamp of Each Line

Click on the timestamp in the editor and modify the time. If there is overlapping time, the system highlights the overlapping time.

Search

Use the caption editor to search for terms. Enter a search term and press enter on your keyboard. The results are highlighted in each caption line.

Search and Replace Text

Enter the search term (1), enter the replacement term (2) and click Replace (3).The Replace button becomes active only if a search term is entered.

Add Speaker ID

Select rows by checking the box next to the caption (1) and add the speaker’s name (2) to the Add Speaker to selected items box. Click Add (3).

The speaker ID is added in [] in the beginning of each line. In this example Henry Rutgers was added as the speaker for the selected lines (4).

Auto Scroll Text

Checking the box below the player for Autoscroll will auto scroll the text when playing the media.

When playing the media, the current line is highlighted in the captions file. When clicking on a caption line, the player jumps to the correct frame for the selected text.

Fast Forward Seek Backward

To the right of the play button, there are 2 buttons to seek backwards or fast forward by 5 seconds.

Add a Caption Line

When an editor uses a mouse to hover over the caption line, editing icons are displayed:

Plus Sign – Add a caption line
Trash icon – Remove the caption line

To add a caption line

Use your mouse to hover over a caption line preceding where you want to add a line.
Click the plus sign to add a new caption line. The line preceding is duplicated and [COPY] is inserted in the caption.
Click the line you want to modify. You can modify the original line or the copy.
Change the caption text. When you modify text, a countdown appears to indicate the number of characters you have left.
Be certain to modify the start and end times so that there is no overlap.

Revert Changes

The Revert option reverts to the last saved changes. This button is enabled once a change has been made to the caption file.

Save

The Save button saves the modified caption file. This button is enabled once a change has been made to the caption file.

Keyboard Shortcuts

Player seek 5S backwards = Ctrl ← or option ←
Player seek 2S backwards = ←
Player seek to 0 = Home and in Mac Command ←
Player pause-play toggle = spacebar
Player seek 5S forward = Ctrl →
Player seek 2S forward = →

When editing is complete, click the Back button in the upper right to return to your video.