GlueFace is the easyest way to let Lego minifigs talk.
The program - coded by David Cuny - can read data generated by Papagayo and use it to overlay animated, phoneme-based mouths onto a LEGO head. And naturally it will be lipsynced!
GlueFace is an "open program", what means you can create your own phonemes (mouth-images), or you just can download more phonemes in the gallery. And you don´t have to pay a cent for it.
Here you can download GlueFace:
http://www.bricktrick.de/index-e-softwaredownload.php
Here is a Tutorial for GlueFace:
http://bricktrick.de/index-e-glueface-3.php
Here you will find the phoneme galery for more mouth-shapes:
http://bricktrick.de/index-e-glueface-4.php
Have fun,
Mario72