Mouth animation

As my cartoon is completely speechless everything has to be shown through emotions - both facial expressions and body movements. So far I managed to sort out the body movement and facial expressions at some degree, but the only thing is missing - animation of mouth on the woman and old lady characters. There was no problem with that on the male character as his mouth is covered with beard and mustaches.
Now I am making some research on this:

Re: Keyframing mouth movements
by Mike Park on Nov 17, 2008 at 1:39:07 am
Do you want AE to interpolate between the frames our simply switch from one frame to another. For the latter, check out Aharon's tutorial section. For the former, there are a variety of ways to do this depending on the shot. For a static face, you may try using the liquid effect and setting several keyframes outside you animation. Then simply copy the keyframes to the proper place. AE will interpolate between the frames. Also, you can keyframe percentages between the neutral position and the new keyframed so that each sound doesn't look exactly the same. One could be at 100 percent, with another at 80 percent. (from http://forums.creativecow.net/thread/2/945911)

something off topic (live footage mouth animation)


great set of AF tutorials from Crazy Cow -http://leaders.creativecow.net/leaders/rabinowitz_aharon/

Lip-sync - http://library.creativecow.net/articles/rabinowitz_aharon/lip_synch/video-tutorial.php