Q. How do I test the accuracy of automatic captioning?


The quality of automated captions will depend on many factors such as the quality of your microphone, background noise, use of technical terms, and your normal speech patterns. Understanding how these impact on the captions may help improve the quality of future sessions and recordings. Please try this quick and easy test process:

  1. Make a short recording of yourself using Blackboard Collaborate or Kaltura. Try to vary the content to include some everyday language and some subject-specific technical language.
  2. Playback the recording and use the Google Chrome Live Captions tool to see how accurate the captions are.
  3. Consider if there is anything that you can do to improve the quality of the captions that are produced. Try saying technical words more slowly and enunciate them clearly.
  4. Try varying between the headset microphone and the one used by your laptop and compare the difference.
  5. Don’t forget, captions are not the only way to make reasonable adjustments for your students. Other options are available including provision of transcripts, provision of PowerPoint files and alternative resources etc. If you are stuck for ideas, why not contact ASSIST (Additional Student Support and Inclusion Services Team)
  • Last Updated Nov 16, 2020
  • Views 34
  • Answered By Rob Howe

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