I have written about my making of a series of sreencasts of basic sound synthesis in puredata in an earlier blog post. The last addition to the series is the building of a patch that shows how a simple impulse response, combined with a delay, a feedback loop and a low pass filter, can be used to simulate reverberation. In fact, dependent on the settings, this patch can also be used for making phasor, flanger, chorus and echo as well.

I just discovered that QuickTime X has built in support for screen recording. I have been using iShowU for screen recordings for a while, and while it has the advantage of recording only a portion of the screen, the QT approach seems to be easier and quicker to work with. Short tutorial below: