Best Practices

13 Multimedia

In this section, we provide recommendations to guide your inclusion of accessible multimedia content.

What are multimedia?

The term multimedia refers to a variety of ways, or media, used to communicate information, such as videos, audio, animations, and slideshows.

File types used: MP3, MP4, PPT

What types of multimedia are you including?

Before you can determine what you need to do to make media accessible, you must understand what is required for different types of multimedia. Consider the following questions:

  1. Does your multimedia resource include audio narration or instructions? If so, you should:
    • provide a complete transcript of all speech content and relevant non-speech content in the resource
  2. Does your multimedia resource include audio that is synchronized with a video presentation? If so, you should:
    • provide captions of all speech content and relevant non-speech content in the resource

Who are you doing this for?

This work supports students who:

  • Are deaf or hard of hearing
  • Are blind or have low vision
  • Have a form of cognitive disability
  • Are in a location where they cannot play or hear audio
  • Are not native-English speakers and need written-word formats to support understanding

What do you need to do?

Many types of multimedia present information in a non-text manner. For students unable to use the original version of these formats, providing text as a transcript, caption, or written description gives them access.

Transcripts

Consider what your students would get out of your multimedia resource if they were not able to hear the audio portion, or if they had difficulty understanding the spoken word. A text transcript provides students with equivalent information to the audio content in a multimedia resource.[1]

As you work on developing a text transcript, keep in mind the following recommendations about what to include:

  • Speaker’s name
  • All speech content. If there is speech that is not relevant, it is usually best to indicate that it has been excluded from the transcript, e.g., “[A & B chatted while slides were loading].”
  • Relevant descriptions about the speech. Descriptions that convey emotions and mood are usually provided in brackets, e.g., “Don’t touch that! [shouted].”
  • Descriptions of relevant non-speech audio. These are usually provided in brackets, e.g., “[metal pipes crashing to concrete floor].” Background noise that isn’t relevant can be left out.
  • Headings and sub-headings. Headings help when they make a transcript more usable or easy to navigate, especially when the transcript is long. When included, put headings in brackets to show they were not part of the original audio, e.g., [Introduction]; [Group Discussion]; [Case Study].

Transcripts and Third-Party Videos

If you are not producing your own video resource but are planning to embed video materials from a third-party source (e.g., YouTube), be aware that not all third-party videos include transcripts. While services like YouTube technically support transcripts, not all of their contributors include them. If you select a video resource that does not already have a transcript, you will need to produce one yourself.

Creating a transcript for a third-party video might infringe on copyright, depending on how the video has been licensed. Before producing a transcript for media materials you did not create, contact the copyright holder of that material for permission to do so. (See information about using YouTube in Pressbooks in the Pressbooks Guide.)

Captions

Captions are the text that is synchronized with the audio in a video presentation. Captions are important when people need to see what’s happening in the video and get the audio information in text at the same time.

The work you put into creating a text transcript for a video resource can be repurposed to provide captions. Keep in mind the following recommendations about what to include in your captions:

  • All speech content. If there is speech that is not relevant, it is usually best to indicate that it has been excluded from the captions, e.g., “[A & B chatted while slides were loading].”
  • Descriptions of relevant non-speech audio. These are usually provided in brackets, e.g., “[metal pipes crashing to concrete floor]”; “[background music by XXX plays].” Background noise that isn’t relevant can be left out.

  1. "Web Content Accessibility Guidelines (WCAG) 2.0: Guideline 1.2," W3C, http://www.w3.org/TR/WCAG20/#media-equiv (accessed April 17, 2018).

License

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Accessibility Toolkit for Authors of OER by Michael Schwartz Library at Clevealand State University and BCcampus is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, except where otherwise noted.

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