My workplace is a school adapting to the pandemic. We need a tool on Windows that will let teachers record their voices while they show the screen, either showing a slide presentation or showing how to use an application.
The tools we have available require too many complicated steps to use, so aren't accessible to all teachers, and create a huge file size that are hard for students with slow internet to download.
At the moment, the file size is ~20 GB for a presentation of 40 slides, where technically it only needs to store 40 pictures plus audio. We get disk space problems after 30 minutes of recording.
We need something that will optimize the file size, for instance, if a slide doesn't change in minute, it doesn't need to save thousands of frames of footage, but should continue to save the audio.
The actual saving steps for VLC with audio are even more complex, requiring selecting codecs, etc. which is far too complicated for most of my co-workers, even with a picture guide to follow along with.
What software can allow teachers to easily make screen recordings and creates small file sizes?