Microsoft Office has released two add-ins that help make Office documents more accessible: STAMP and DAISY.
Add closed captions or subtitles to media in PowerPoint with Stamp
STAMP: This Subtitling text add-in for Microsoft PowerPoint lets you add closed captions to the video and audio files you include in your presentations. If you work with captioned video and audio files that already have Timed Text Markup (TTML) files associated with them, this add-in lets you import them directly into your presentation. If you don’t have a TTML file, you can add captions directly in your presentation.
Using the Save as Daisy add-in for Word
Save as DAISY: The Open XML to DAISY XML Translator add-in for Microsoft Office Word helps content creators produce accessible documents for people who have visual disabilities. Installing this add-in allows Word documents in Open XML format to be saved into DAISY XML, which can then be converted into DAISY Digital Talking Book (DTB) format.
Both these add-ins are open-source collaborations through the SourceForge project.
Microsoft Office already includes several new and updated accessibility features, and these two newly introduced add-ins will make things even easier for people with hearing, sight, or reading disabilities.