Spring 2016 Classes

Sample of Past Classes

Inexpensive Way to Record Lectures (posted in 2011)

With a lot of help from others on the net, I've settled on using a combination of free software and relatively inexpensive hardware to record lectures including full screen capture. The screen capture includes small video of lecturer from webcam on the laptop. For freehand drawing, I used a Bamboo tablet, which is also captured on the screen. Audio is recorded using an xTag wireless mic.

Here is sample lecture from my machine learning course.

Linux tools (as in "free") used include:

The site http://ubuntuforums.org/showthread.php?t=786095 is very useful for installing latest versions of x264 and ffmpeg. Also, the site System-Wide PulseAudio Equalizer Updated For Ubuntu 11.04 Natty Narwhal, Added 2 Patches helped with setting volume gain on USB XTag mic.

Hardware includes:

Here are a set of three bash scripts I used.

In the future, I will add screenkey, see the video.