Generating Lip-Synched animation?

[Miki]

Hello,

I'm trying to write something like http://blabberize.com/, generating
a video file with lip-sync.
Currently the general idea is:
* Generate animation images using GIMP
* Sample voice and detect when there is sound and when there is
silence
   - Still working on details for this one, will probably using
audioop and wave modules
* Generate a list of images according to the voice (using the bitrate
for sync)
* Generate video from images using mencoder

Before I venture into this, does anybody has a better idea?

Thanks,
--
Miki <miki.tebeka at gmail.com>
http://pythonwise.blogspot.com