Many people who regularly use PowerPoint do not realize that you can embed video into your presentation. Because video clips are often difficult to acquire and utilize, and because many people do not realize this feature exists in PowerPoint, video clips are not very common in PowerPoint presentations.
The focus is on video clip accessibility here because if you do use video in your PowerPoint presentation, you should take time to work with the video file and make it accessible for people who cannot hear or see. Just as movies and television are captioned, you need to be sure that your video content is captioned.
This page will focus on how to organize your video content within the context of the HTML slide. For a more detailed discussion on how to work with, edit, transcribe, and synchronize video files, see the "Working with Video Files" tutorial.
Begin by editing your presentation HTML file. Go into the BODY section
at the location where this slides should be inserted (after slide 3, since
you will be working with the fourth slide in this section); it is here
that we will add the next slide.
From the sample "Human-Computer Interaction" presentation, (see Image 17) is the original PowerPoint slide 4:
To convert slides with embedded video:
You will notice that this slide uses a multi-column formation (with two columns). You will take the "linearize" approach to this slide, placing the text bullet list just below the video clip in the HTML file.
<!-- Slide 4 -->
<img src="Slide4.jpg" alt="Slide 4">
<H1>A Taste of What's to Come: Device Analysis</H1>
The HTML for the list should look like this:
<!-- Slide 4 -->
<img src="Slide4.jpg" alt="Slide 4">
<H1>A Taste of What's to Come: Device Analysis</H1>
<ul>
<li>What does it mean to be "usable"</li>
<li>Usable by whom?
<ul>
<li>Elderly</li>
<li>People with various backgrounds</li>
</ul>
</li>
<li>What hints of the object's "abilities"
are evidenced from it's shape?</li>
</ul>

This will then display a dialog box showing the location of the video file (see Image 19).
This is the file that you will need to reference in your HTML slide.
<!-- Slide 4 -->
<img src="Slide4.jpg" alt="Slide 4">
<H1>A Taste of What's to Come: Device Analysis</H1>
<a href="HCI.avi">A video clip discussing using
various devices and the ubiquity
of computing</a>
<ul>
<li>What does it mean to be "usable"</li>
<li>Usable by whom?
<ul>
<li>Elderly</li>
<li>People with various backgrounds</li>
</ul>
</li>
<li>What hints of the object's "abilities"
are evidenced from it's shape?</li>
</ul>
Note: The A tag is used to create a reference to another HTML page, e-mail, or file that is accessible on the Web. "A" stands for "anchor" and the "href" stands for "hypertext reference". You the ability link to another document; in this case, the document you would like to link to is the video file ("HCI.avi" in this example, but you can link to any file).
Notice that the link opens a video player and displays the video. The user can pause, rewind, fast-forward, and close the video as they wish. Of course, in order to view the movie clip, the user must have an appropriate video player software loaded.
Be aware that the video clip and this slide are not accessible because there is no textual equivalent for the video. You should add a textual transcription of the video clip just beneath the hyperlink to the video file. Since this slide contains a multimedia element (the video clip is multimedia since it contains video and audio), any textual transcription you provide must also be synchronized with the video.
You can find more information about how to create synchronized captioned video in the "Working with Video Files" module.
The next page will discuss how to convert slides with tables.