7.1.1: Captioning playback

Where ICT displays video with synchronized audio, it shall have a mode of operation to display the available captions. Where closed captions are provided as part of the content, the ICT shall allow the user to choose to display the captions.

Notes

Captions may contain information about timing, colour and positioning. This caption data is important for caption users. Timing is used for caption synchronization. Colour can be used for speaker identification. Position can be used to avoid obscuring important information.

Testing methods

Type of complianceTest 1
Pre-conditions
  1. The ICT displays or processes video with synchronized audio.
  2. Captions are provided in the video.
Procedure
  1. Check that there is a mechanism to display the captions.
Result Pass: Check 1 is true
Fail: Check 1 is false

 

 

Type of complianceTest 2
Pre-conditions
  1. The ICT displays or processes video with synchronized audio.
  2. Closed captions are provided by the content.
Procedure
    1. Check that there is a mechanism to choose to display the captions.
      Result Pass: Check 1 is true
      Fail: Check 1 is false

      Requirement details

      Reference number: 7.1.1

      Related requirements

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      No related technical requirements are associated with this technical requirement