#05 Video Recording and Screencasts using Linux

This article describes the workflow for creating video recordings and screencasts, especially considering the tools that are available in the operating system Linux.

This article aims to provide teachers with a simple introduction to produce video recordings and screencasts and explains the steps involved.

In addition, an interactive learning video is available for this article (linked in the online version of this article)

Possible applications

From the wide range of applications of audiovisual media, some examples will be addressed here that are particularly relevant for teaching:

  • discussion of slides, sketches, flowcharts 
  • instructions for using software, solving tasks 
  • recording of laboratory experiments
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Preliminary considerations

Video recordings and screencasts are types of videos that are suitable for creating teaching and learning materials. For use in teaching, special attention must be paid to the didactic concept of the course and the use of this medium as a teaching tool.

The following points briefly summarise the preliminary considerations and related questions:

  • Decide on the use of the learning video
    What will I use this tool for?
  • Create a didactic concept for the content of the learning video
    What is the content and which learning objectives does it support?
  • Create a structure for the learning video that fits the didactic concept
    How do I convey the learning content?
  • Record the required video footage
    What do I want to teach or show?
  • Post-production and editing
    How should the material be presented?
  • Use and publication
    Where and how do I make the video available?
Tipp

see also the learning video canvas

 

Various tools are available in Linux for recording and editing the raw video material. Below, some applications, their use, basic features and availability are listed:

APPLICATION

MAIN FEATURES

OPERATING SYSTEM

Screencast

VokoscreenNG

Screen, webcam, audio, start/stop timer, screenshot

Linux, Windows

SimpleScreenRecorder

Screen, audio,
start/stop timer, screenshot

Linux, BSD

Kazam

Screen, audio,
start timer, screenshot

Linux

Video recording

Webcamoid

Video, photo, audio,
video effects

Linux, Windows, MacOS

Cheese

Video, photo, photo series,
video effects

Linux

OBS Studio

Video, photo, photo series, audio, video effects, audio effects

Linux, Windows, MacOS

Post-production

Kdenlive

Multi-track editor, video, audio, effects

Linux, Windows

OpenShot

Multi-track editor, video, audio, effects

Linux, Windows

Recording screencasts

Screencasts are video recordings of the screen content. The applications listed above also support a simultaneous audio recording. Screencasts can be used to create any content that can be displayed on the screen.

Hinweis

Examples:
Instructions for operating software, discussing lecture slides

Using the software is usually very simple. The workflow looks as follows:

  • Select input devices (screen, sound card)
  • Select image frame (whole screen, window or rectangle)
  • Select the image resolution (SVGA, HD) and audio channels (mono, stereo)
  • Select the output format (MKS, MP4) for image and sound
  • Start recording
  • Record
  • Stop recording
VA_Hinweis

Other useful features include the ability to show or hide the cursor during recording, a screen magnifier and a timer, which starts and stops the recording automatically.

 

Video recording

Video recording differs from screencasting only in that a video camera (e.g. webcam) is selected as the input device instead of the screen, and the image frame cannot be freely selected.

Hinweis

Examples:
Recording a laboratory experiment or a lecture

VA_Hinweis

Other integrated, useful features are, for example, mirroring the image or the application of image effects (e.g. greyscale display, contrast, brightness, virtual background).

Post-production

In post-production, also known as ”video editing“, parts of the video footage are selected and compiled in the desired sequence. Images can be inserted to separate individual chapters, effects can be applied, music or a voice-over can be added. There are no limits to creativity here.

Tipp

For instructions on post-production with "Kdenlive", see also the learning videos by Julia Hauser on TUbe.

Publication

Once the video is ready, the question of where and how to make it available to learners needs to be addressed. For teachers at TU Graz, the following options are available:

  • TUbe
  • TeachCenter (enrich an interactive TUbe video with H5P)
  • for OER-certified teachers: upload to the OER repository
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Free public domain CC0 photo via raw pixel

Author:

Jakob Harden

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