Stackmat Viewer

Finally I got a cable to connect my stackmat to my computer. It's a 3.5mm male to 2.5mm male audio cable I bought from DealExtreme for $0.97 with free shipping.

It works with CalCubeTimer, but I can't help it, I have to do it myself as well. It doesn't hurt to have two independent implementations, and I have some further developments in mind. So far I have StackmatViewer, a program in two parts, recording and viewing/playing. Here are two screenshots of the viewing part:

I haven't seen good visualizations of the signal like this yet, maybe others find this interesting as well. Or it could be used to diagnose problems.

Download the program: StackmatViewer.zip
Download the program with sources: StackmatViewerDeveloper.zip

How to use it:

  1. Connect your stackmat to your computer's microphone jack.
  2. Turn your stackmat on.
  3. Execute Recorder.jar, this records five seconds of sound data and stores it in the file "sound.dat".
  4. Execute Viewer.jar or Player.jar, this displays or plays the recorded sound data.

More information about the signal: