Slide show
You canintegrate an audio commentary on a slideshow (successive slides) to create an enriched educational resource.
This resource can be integrated into Moodle or uploaded to YouTube for the example (private type link to pass on to your students).
Soundtracking a slideshow:
PowerPoint
https://support.office.com/fr-fr/article/enregistrer-un-diaporama-avec-une-narration-et-un-minutage-des-diapositives-0b9502c6-5f6c-40ae-b1e7-e47d8741161c
ActivePresenter
https://atomisystems.com/download/
Instructions for use: https://atomisystems.com/activepresenter/tutorials/
Free solution (English)
QuickTime Player on Macintosh
https://support.apple.com/fr-fr/guide/quicktime-player/qtp97b08e666/mac