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Recording Technique

Most of the videos have been recorded using Windows Tablet PCs that I bought for little money as second-hand devices. Until mid-2013, I mostly used a Toshiba Portégé M400; from then until February 2014, I used a Lenovo ThinkPad X61t 7762-CTO. (Note that there have been lots of variants of the X61t.) From March 2014 on, I have been using an Acer Aspire R7-572G. (Note that there is an another, entirely different Aspire R7 model by Acer.) In the meantime, I have replaced Acer’s stylus by Microsoft’s stylus for the Surface Pro 4, which uses the same technology but is larger and heavier. For audio, I use a USB microphone, mostly the Samson Go Mic. For some of the videos, I have used a standard quad-core notebook computer or a quad-core desktop PC in conjunction with different Wacom graphics tablets (Bamboo and Cintiq small and large).

Since April 2016, I exclusively rely on my own software for writing, drawing, screenrecording, and editing. Its user interface for live recording runs on an Android phone that I place next to the tablet, thus keeping the screen that is visible to the local students and the screen recording free of user interface elements. Before that, I used Windows Journal (which used to be included with Microsoft Windows, but is bound to be removed) for drawing, PenAttention to highlight the position of the stylus, Philip’s Large Coloured Cursors to use the mouse as a pointer, HyperCam 2.x for recording (be careful about not using a version that comes with adware and be sure to set its process to high priority in the Windows Task Manager to reduce the risk of audio/video drift), Xvid for video compression, Virtual Dub for editing (if need be).

Over time, I have developed additional software to streamline production and presentation:

Didactics and Technology

For the inverted classroom (aka flipped teaching), lean production techniques, etc. have a look at my talks or papers (both English and German).