I often level the audio to reduce particularly loud sounds or amplify soft seconds and I use noise reduction to remove the sound of my laptop fan and the air circulation sounds in my office. Very importantly, it allows me to adjust the audio track to improve quality. This allows me to lay over text to correct mistakes made on the video, cut out longer errors (I will often repeat a section of a video while recording to get a better take, and I cut out the take I don’t want), splice two shorter videos together, and zoom in on particularly complicated sections or drawings. If your video editing software allows for bookmarks, this can help students navigate within videos.Īfter recording, I do some light editing using Camtasia Studio.
Students are free to pause, rewind, or skip ahead, so video length is not always a major concern, though I have found that students get a little anxious when the videos are too long. For my area (physics), it is also approximately the time it takes to either introduce a concept or work through an example. I try to keep my videos to be somewhere between 10 and 20 minutes, mostly just to keep file sizes to less than 50 MB. I also use a USB microphone to record narration. I tend to use a black background with bright pen colors in order to provide some visual “pop.” While I am writing, I use a screen recorder to capture my computer screen on video. It takes some practice to be able to write legibly and you generally have to write a little slower than you might normally. I use a Wacom Bamboo tablet to write on the computer screen in SmoothDraw, as if writing on a chalkboard or a piece of paper.
That website gives a suggestion for software tools to use: Snag-It and SmoothDraw, so those were the ones I began with. I was inspired in part by the Khan Academy videos. I have been recording videos for my physics courses for a couple years. * 5 means very user friendly or very effective. Screencast Software (Recording Videos and Narration of Computer Screen) Tool
0 kommentar(er)
