Topics in this article include:

Automatic Captioning

Editing Captions

Viewing Captions



Automatic Captioning

All VoiceThreads created after August 17, 2019 will be auto-captioned. VoiceThread will automatically add captions to your audio or video slides and comments using automatic speech recognition (ASR). The captioning processes begins as soon as you save your recording and should appear in 5-10 minutes, depending on the length of your recording. Captions are created based on the audio track and the content is assumed to be in English.


Captions are displayed beside the comment box.

Image of sample VoiceThread with captions turned on




In general, automatic captions average around 80% accuracy and this may vary depending on the audio quality, clarity of speech, background noise, etc. We recommend using the generated captions as a starting point - you will want to edit them for accuracy.


The Instant Captions with VoiceThread video will walk you VoiceThread's captioning features.




Editing Captions

Once a caption has been added to a slide or comment in VoiceThread you can edit it to make any changes or correct any mistakes. 


Click on your VoiceThread comment and click on the CC button to open your captions.

image of VoiceThread closed caption button


Click the Edit Captions button to launch the editor.

image of Edit Captions button



Make your edits to the captions and click Save Captions to save your changes.

image of VoiceThread caption editor



Viewing Captions

Depending on your settings, captions may not automatically display when you are watching a VoiceThread. To turn on captions, click the CC button on the top right corner of the VoiceThread.

Closed Captioning button in VoiceThread


This will open a menu. Select Onclosed captioning turned on


Any slide or comment that has been captioned will then display captions.

captions playing in VoiceThread


Please note that if a VoiceThread has not been captioned you will not have the ability to turn on captions for that VoiceThread.