My interactive presentation on digital signal processing (previous post with video) is now available on the web, at! More details, source code, etc. at the site.

(P.S. I'll also be at the next meetup, which is tomorrow, January 21, but I don’t have another talk planned. (Why yes, I did procrastinate getting this site set up until a convenient semi-deadline.))

I have really failed to get around to blogging what I've been doing lately, which is all software-defined radio. Let's start fixing that, in reverse order.

Yesterday, I went to a Bay Area SDR meetup, “Cyberspectrum” organized by Balint Seeber and gave a presentation of visual representations of digital signals and DSP operations. It was very well received. This video is a recording of the entire event, with my talk starting at 12:30.

Source: What is it? set 403 (a weekly "Identify these objects" puzzle).