The AudioStory media prompt type, allows you to create an audio + images slideshow that behaves like a video.
[screenshot only]
This AudioStory can be seen here:
https://demo.poodll.com/mod/minilesson/view.php?id=1818
To create an audio story, choose "Audio Story" from the Media Prompts dropdown menu.
Into the Audio Story Files area, upload an audio file, multiple image files and optionally a subtitle file in VTT format. The audio and subtitle files require no naming convention. But only 1 of each will be used. The image files should have the filename of their sequence in the story. e.g 1.png, 2.jpg, 3.png
In the Image Entry Times field, beside each image number, set the timestamp at which the image should enter the story. The timestamp format is: HH:MM:SS
eg
To set an image to enter when the audio is at 20 seconds: 00:00:20
To set an image to enter when the audio is at 1 minute 05 seconds: 00:01:05
Subtitles
Poodll Media (and Poodll ReadAloud) can generate the subtitles (vtt file) for an audio file, but there is currently no obvious way to download that file. It requires finding the VTT URL and downloading it. Until we make a utility for that, it might be easier for you to search online for "vtt maker" or "vtt creator" for an online tool.