This is a collection of pointers about creating and publishing videos of talks and poster presentations that may come in handy at a time of conference cancellations on short notice.
Don’t over-do it: Your video is a stand-in for an on-stage talk or a short poster pitch. Just as these are hardly ever presented in a perfect performance, your video does not need to be perfect either.
Have a pointer: If you would normally present your materials with a pointer, then do so in the video as well.
Have a sound check: Record a short video to test microphone sensitivity (make sure to speak loud and low, have a few clicking sounds) and ensure that there’s not too much background noise in the video.
With Ubuntu Linux newer than 18.04, you can start recording your screen by pressing Ctrl+Alt+Shift+R. The default duration for Gnome screen casts is only 30 seconds but can be changed from the graphical user interface or on the command line:
$ gsettings set org.gnome.settings-daemon.plugins.media-keys max-screencast-length 1800
On Mac OSX, you can use the builtin screen shot tool accessible via Shift-Command (⌘)-5 to record videos. (Make sure to turn on the microphone via a click on Options before recording.) After you stop the recording, you’ll be able to re-play and trim the video.
On Windows 10, there is built-in video capture via the Xbox game bar. To edit the video after recording, you can use the Photos app.
From a viewer’s perspective, it would be ideal if you published
You might have a different preference regarding the publication of your original materials.
Zenodo.org (Wikipedia article) is funded under the European OpenAIRE program and lets you publish collections of different media and data files under a common DOI with minimal effort. Sadly, the website does not provide built-in video preview.
Figshare.com (Wikipedia article) is a privately owned publishing platform that also allows for publishing collections media and data files under a common DOI. In contrast to Zenodo, it has built-in preview for most of the relevant formats.
YouTube.com can be used for an accompanying publication of your video that enhances accessibility via the built-in autogeneration of closed-captions.