Alamo Colleges District

Edit Closed Captions Using My Media Caption Editor

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When an audio or video file is uploaded to your My Media account, automatic speech recognition (ASR) software will begin generating automatic captions for your presentation within minutes. However, the captions might misrepresent the spoken content due to poor audio quality, mispronunciations, accents, dialects, or background noise.

If you are the owner of the presentation, or if you have been added as a co-editor, you can manually edit the transcriptions so the quality of the captions meet accessibility standards.

Editing Automatic Captions

Automatic captions often require manual cleanup before the quality is acceptable to meet accessibility standards. Here is how you edit captions for a presentation.

  1. Select your captioned video and in the right column, click Edit Captions.
  1. The "Edit Captions" screen will appear. Provide revisions to the captions or add transcription at certain markers as necessary. When you are finished, click Save in the upper right corner to apply the changes, or select Save and Exit from the drop-down menu to return to the presentation's summary page.
  1. Once the changes have processed, the closed captioning button ["CC" icon] will appear on your video.

Video Tutorial: Edit Closed Captions Using MyMedia Caption Editor


1. Click Edit Captions.

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2. Click Play

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3. Click Pause.

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4. Click Caption text at 00:00:14.810.

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5. Type Caption text at 00:00:14.810.

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6. Click Save.

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7. That's it. You're done.

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Here's an interactive tutorial

** Best experienced in Full Screen (click the icon in the top right corner before you begin) **

View the My Media guides for more information about how to navigate the platform, or contact your local IT Help Desk for technical assistance.


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