Module4: Making Video Accessible

Estimated Time to Complete: 3 hours

Module 4 contains ten topics and two labs. All topics are not required to be completed; you may start and stop at any point

Objectives

Upon completion of Module 4, you will be able to:

Identify accessibility issues related to video.
Describe the basics of captioning video.
Create a transcript and caption a video.
Discuss different solutions for publishing video to a course management system (CMS).
State the time involved in making video accessible.

Overview

To make multimedia accessible for individuals with disabilities, transcripts, captioning and audio description are needed.

Captioning is needed to make multimedia accessible for individuals who are deaf or have a hearing impairment. There are three types of captioning:

Closed captioning (CC) is turned on and only seen at the discretion of the viewer.
Open captioning (OC) appears on the screen for all viewers to see.
Real time captioning simultaneously prepares and transmits captions at the time of origination by trained real-time captionists using specialized stenotype software and equipment.

Audio description (AD), also referred to as descriptive video and video description, is the verbal describing of key visual elements in programming. This description is inserted into natural pauses in the audio of the programming and is designed to make the programming richer as well as accessible to individuals who are blind or have a visual impairment. There are three types of audio description:

Closed audio description runs on a second audio channel and is heard at the discretion of the viewer.
Open video description runs on the same audio channel and is heard by all.
Real time audio description simultaneously offers live commentary or narration by a trained Audio Describer via headphones and a small transmitter.

In Module 4, you will discover the importance of creating accessible video and be introduced to basic video concepts such as file formats for video, resolution and frames per second. This module will then guide you through a software program that is commonly used for captioning video:

Media Access Generator (MAGpie).

Additionally, information on how to publish video to course management systems, such as WebCT and Blackboard, will be presented.

Prerequisite Knowledge

To gain the most from Module 4, you should have familiarity with:

Basic accessibility terminology;
Working with a text editor (such as NotePad or vi), surfing the web, and downloading a file from a webpage.

Note: Module 4 does not assume that you have ever worked with captioning.

The next page presents version information for software and the various files that are used in Module 4.

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Files You Need