Accessibility considerations for video and audio content
There are several ways that you can make your audio and video content more accessible:
- Provide captions, transcripts, and audio descriptions for your media.
- Avoid blinking or flashing content that may trigger seizures.
- Do not use autoplay for videos or audio.
- Use an accessible media player to share your content.
This page provides information on how and when to use captions, transcripts, and audio descriptions, and how to select an accessible media player.
Student accommodations
If a student has an accommodation through the Services for Students with Disabilities office (SSD) for captions, transcripts or audio descriptions, faculty and staff can request these services through the SSD caption and transcript request form.
Captions
Captions are a synchronized text version of audio and video content. You can add captions to your content by either using a vendor for professional captioning or editing automatically-generated captions. If you use automatically-generated captions, they will need to be edited for accuracy.
You can evaluate captions for quality based on the following features:
- Captions are synchronized with the video and audio content.
- Captions use correct grammar and punctuation.
- Speaker labels indicate who is speaking.
- Captions convey important background sounds and music.
Learn more about captions best practices.
Professional captioning
You can get accurate captions by working with a vendor to generate professional captions. Different services will have different costs and turn-around times. You can compare the features and costs of different captioning services.
Auto-captioning with edits
MiVideo and Canvas
Automatic captions will be generated when new content is uploaded to MiVideo. These captions can be reviewed and edited for accuracy.
Editing captions in MiVideo
Automatically generated captions will need to be edited for accuracy. You can edit automatically generated captions in MiVideo.
- Editing Captions for a Video In My Media On Canvas (video tutorial)
- Edit Captions in Canvas and MiVideo MediaSpace
Exporting captions from MiVideo
You can download MiVideo captions and use them if you upload your media content to a different platform.
YouTube
YouTube auto-generates captions that can be edited for accuracy. You can also upload captions to YouTube from another source.
Zoom
After a Zoom meeting or event, you can include and edit captions and a transcript for the video recording.
Vimeo
Vimeo does not provide automatically-generated captions. However, you can upload captions to add to your content.
Transcripts
Transcripts provide an asynchronous text version of audio or video content. If you have audio content that does not have synchronized video — for example, a podcast — you will need to provide a transcript. Transcripts can also be provided in addition to captions for videos.
Creating transcripts
Transcripts can be created from a script, automatically generated and edited, created from captions, or professionally transcribed.
- How to Download Captions & Transcript Files from My Media (video tutorial)
- W3C Transcripts
Audio descriptions
Audio descriptions provide information about visual elements of a video. This is especially important for people who are blind or have a visual disability who may not be able to see visual content or text in a video.
Creating audio descriptions
You can create audio descriptions yourself or use a vendor for professional audio descriptions. The simplest way to provide audio descriptions is to incorporate it into your narration or script before recording. For example, if you are making a video of a slide presentation, describe the the visual content of the slides.
Audio descriptions can also be included in a separate audio track or text file, which you can create or have professionally created.
Accessible media players
When deciding what media player to use for your content, it is important to select a media player that is accessible. Some essential accessibility considerations for accessible media players include:
- Keyboard and screen reader accessible: You must be able to navigate through and use all of the media player controls via keyboard and with a screen reader.
- Supports captions and audio descriptions: Captions and audio descriptions previously added to a video will be presented correctly when using the player.
Both MiVideo and Youtube have several accessibility features. If you are sharing a playlist, YouTube is recommended.
MiVideo
MiVideo supports captions, transcripts, and audio descriptions.
- MiVideo accessibility includes information about using MiVideo with a screen reader.
YouTube
YouTube supports captions and transcripts. YouTube does not support separate audio tracks for audio descriptions.
- Youtube accessibility includes information about accessibility features, keyboard shortcuts, and using YouTube with a screen reader.
Flashing content
Some flashing, blinking, or strobing content can cause seizures for some people. It is important to make sure that your video content does not contain more than three flashes in any one second period, or that the flash is below the general flash and red flash thresholds.
You can use the Photosensitive Epilepsy Analysis Tool (PEAT) to analyze your video content for seizure risks.
- Understanding Success Criterion 2.3.1: Three Flashes or Below Threshold
- Web accessibility for seizures and physical reactions