Suggestions on methods to display sonograms as movies?

["Marc Myers" primatemarc]

I'm working on a project where I would like include both audio and its sono=
gram as a video of some sort. I've been using Acousmographe and it works we=
ll in some regards. However the only output is a SWF file and I must conver=
t this to another format. The conversions have not always gone well. Anyone=
 have any luck? Obviously, in any decent sound editing program one can see =
a sonogram as one listens to the file, but I'm interested in this being a f=
reestanding movie. I've also tried screen capture utilities but consistency=
 in the size of the image is also important and this is not always easy to =
do with screen capture.
Marc Myers