The more you can design your video to maximise accessibility, the easier it will be for all audiences to comprehend your messages and information.
Planning your video
When producing a video, tips to achieve accessibility are to:
choose an effective combination of colours and contrast levels against the background
avoid patterned backgrounds and strobe effects
not convey information using colour only
ensure that audio levels of content (e.g. talking) are high enough relative to background sound or music
align the time on screen with the complexity of visual components such as diagrams, figures and maps
provide an alternative format of the video’s content, preferably in text or HTML.
Writing alt text for videos
People with visual or aural impairment may not be able to perceive videos. The alt text should contain a transcript of the audio content and any text elements, and descriptions of visual elements or sequences not adequately described by the audio transcript (as you would do for a still image or figure). It may be appropriate to also provide an audio description, and closed or open captions.
Additional resources for video accessibility
AccessibilityOz(Opens in a new tab/window) has an accessible video player, fact sheets and checklists.
The IMS Global Learning Consortium has developed guidelines for developing accessible learning applications(Opens in a new tab/window).