On page 75, Adding Accessibility Text to Slides you state, in step 2, that …”Screen readers will not see slide background images. When a visually impaired learner accesses this slide, the assistive device reads the Slide Accessibility text aloud.”
Following this statement in the instruction below, you have us type what looks to be the script of the narration into the Accessibility dialog box.
I am a bit confused by this. If my module includes a narration (voiceover audio) and closed captioning of the narration, what additional information should I include in the Accessibility dialog box? Do I also add the narration there too or do I simply add descriptive text only to explain what the image of the slide is?