Handbrake is free compression software available for both Macs and PCs. 50–200MB for 1 hour) are also desirable for downloading and viewing offline. 1GB for 1hour) are recommended for uploading to theBox or YouTube. It's a good idea to compress several versions of each video for different uses. Once you've decided on a format, you can determine compression and frame size. audio compression format e.g MP3 and ACC both are efficient, with ACC usually preferred for delivery.video compression format e.g H.264 (most commonly used and recommended), MPEG-4.Screen recording software generates a compressed video file described in three ways: This can lead to complexity with delivery and accessibility. bullet points fading in one by one), and you have little to no control of audio compression, format and file size, depending on the version of PowerPoint you use. When you use this method, you cannot synchronise the audio with each build within a slide (e.g. You can also use screen recording software in combination with an annotated PowerPoint file to convert the individually annotated PowerPoint to a single video. It also lets you switch to web pages or other applications as part of the lecture. This allows for recording of the presentation in one go and in real time, capturing all the animation, embedded videos, transitions and so on that would be shown during a live presentation. With screen recording software, you can click through your PowerPoint from start to finish, speaking to each slide, while the software records both your voice (including video if desired) and the timing of the slide changes. iMac or any Mac laptop) now have this functionality built in. You'll need an input device for audio (and video if desired) a standard webcam attached to the recording computer will do. The following page contains instructions on how to pre-record a presentation using Blackboard Collaborate.Ĭommercial screen recording software such as Screenflow (Mac) or Camtasia (Mac or PC) is relatively cheap and easy to use. Pre-recording presentations using Blackboard Collaborate is particularly useful when recording audio with presentation slides. You can use Blackboard Collaborate to pre-record class lectures or other course materials such as a course overview or welcome video for online classes. Recording options Screen recording software The British Universities Film & Video Council have published these Audiovisual Citation Guidelines to encourage best practice when citing audiovisual materials. Further information on copyright is available on the UNSW Library's copyright website. Is any material in the presentation owned by others? Does the PowerPoint contain images that have been taken from the internet? Have you used music that is covered by copyright? Be aware of, and plan for use of, copyrighted material, to avoid problems down the track. streaming video) require internet access, or can it be saved to a device so that a student can consume it when they move into a space without internet coverage? Copyright Does the file only work on desktop computers, or can mobile devices access the content as well? Does the resource (e.g. Just about everyone has an internet connection and a mobile device nowadays, and students increasingly want to be able to consume media when and in a form they choose themselves. What about students with disabilities? What about students with different inherent learning styles? Making content accessible can involve extra work, and you should explicitly include it in your digital resource strategy. Do students require a certain type of computer or level of operating system to consume the content? Do they need specific software to access it, and is this software available on multiple platforms? Does this software carry a cost, or is a free alternative available? Accessibility CompatibilityĬompatibility is a major concern whenever you’re distributing digital resources to a cohort. These considerations apply to digital resources in general, not specifically to pre-recorded lectures. Students can play back the lectures and work through the slides at their own pace, which is particularly useful in the case of complex courses. Teachers can use them to re-organise teaching time and rethink content delivery. Pre-recorded lectures can benefit both staff and students.
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