TechSmith Knowmia (Relay): Add & Edit Captioning (All Users)

This document provides an overview on how add captioning to your videos in TechSmith Knowmia (formerly TechSmith Relay).

Closed captioning not only helps students with hearing impairments, but is beneficial for students where English is their second language.  It is also beneficial for students not able to listen to the video due to sound restrictions in their environment (e.g., at work). 

Watch the videos below for additional captioning tips and tricks.

See the Editing Captions for ADA Compliance video to learn how to edit captions in TechSmith Knowmia.

See the Publishing Captions video for full features.

Log into TechSmith Knowmia at

Add Captioning

1. Navigate to the video.
2. Click on the video.
3. Click on the Accessibility button.


4. To start the captioning process, select Add Caption Track.

generate captions

5. Accept the "Speech-to-text" option and click Apply.

Speech to text option

6. When the caption is complete, the status will read "Ready for Edit." To edit the caption, click on the pencil.

Edit Captions  

Edit Captioning

1. Type directly into the closed caption box to edit the text. In the example below, you may want to remove the comma.

Edit closed caption

2. Use the Play button to begin the video and the pause button when you want to stop the video to make edits.


Click the Next or Previous button to advance to or return to caption box.


Drag the timeline (not the teal play-line) to the caption box on the video.

3. Click the "! ADA" button at the bottom of the screen to see sections that may not be ADA compliant.

ADA button

4. Click on a rule to jump to the next error.

In this example, the caption is too short. The text from the end of the previous caption should be combined with this caption to form a complete sentence. (See below)

When all errors are met, the gold exclamation mark will turn to a green check mark.

NOTE: All changes are automatically saved. Use the "Undo" button (see below) to revert.

5. If you want to save and return to your  before you are finished, click the Save & Exit button in the upper left corner of your screen.
When editing is complete, click the Publish button at the top of the page.

Other Edits

In addition to editing the text, other edits can be done to the text boxes.

editing tools

1. Add New Caption - click this button to add a blank caption box to the point on the timeline where no caption box exists.
2. Delete Caption - click this button to delete a caption box.
3. Split Caption - move the timeline and pause the audio to where you want the caption to split. Note: align the play head with the audio, and not the text in the text box before you split the text box.
4. Delete All Captions - WARNING: Clicking this button will delete ALL of the captions. If you inadvertently clicked this, click the Undo button (#5 in the image above).
5. Undo - revert to the previous action.
6. Redo - repeats the previous action.

Add an Assignee

If you have help from a GA or other user, you can add them as an Assignee to help edit captions. That is the only access they will have to your video.

1. Click on Add Assignee button.

add assignee

2. Enter the user's SIUE email (not just the e-ID). The user will receive an email notifying of the captions.

If a caption has not been generated, click the "Generate speech-to-text captions" check box.

Click Save at the bottom of the window.

add email

The Assignee(s) will be listed.

assignee list

See Also:

Keywords:Streaming, audio, video, media,files, relay, techsmith, closed caption, caption, captions, captioning, sub titles, subtitles, knowmia, nomea, nomia, no mia, know mea,   Doc ID:94007
Owner:Center I.Group:Southern Illinois University Edwardsville
Created:2019-08-22 10:38 CDTUpdated:2020-12-04 12:47 CDT
Sites:Southern Illinois University Edwardsville
Feedback:  1   2