Multimedia files (images, audio, and video) can be either accessible or inaccessible.
Images require accompanying alternative text (alt-text) that helps people understand the image if they cannot see it. Audio files require a text transcript, and video files need text captions so that people can follow along with the audio even if they cannot hear it well.
Below is information on selecting accessible materials, or making changes to existing materials so that they are accessible.
- Appropriate use of alternative text: A WebAIM tutorial on writing good alternative text for images.
- Adding alternative text in moodle: Step by step instructions for adding alternative text to images in moodle.
- Adding alternative text in wordpress: Step by step instructions for adding alternative text to images in WordPress.
- Transcribe Tool for Google Chrome: A web-based utility (designed for the Google Chrome web browser) to assist with creation of transcripts for audio files. It allows you to control playback speed of an audio file and type your transcription within the same window using keyboard commands only, with no jumping to the mouse.
- Searching for captioned videos on YouTube (captioned video): This video, with available captions and transcript, explains how to locate videos on YouTube that include captions.
- How to add captions to your YouTube videos: Documentation from Google about how to create captions and subtitles for YouTube videos you uploaded.