Oct 18, 2017: This work around just became obsolete:
Character Animator CC (October 2017) has been released including:
"Copy a Lip Sync take of visemes (right-click on the take bar, then choose Copy Visemes for After Effects) as Time Remap keyframes for use in After Effects"
LJ visemes - Adobe Character Animator to After Effects
Grab the preset for free gum.co/StzUP
Character Animator has this nice feature to compute visemes from given audio, setting triggers for mouth shapes. In addition to animate the full character in CH, you could also just export the animated visimes with an alpha channel to After Effects.
But there is no option to transfer data or keyframes to After Effects, which would be nice for further or other use.
I just set up a preset as workaround. No magic, just a trick / brute force method ;)
Instead of just animating mouth shapes, I expanded the graphic, so it will show marks at a specified position.
In After Effects, these positions get sampled and will trigger mouth shapes or other stuff. It is recommended to bake the expression though to improve performance, reuse the set up in the current scene for changed or additional audio and make the animations independant from CH at the end.
Character Animator means, you need to be subscriped to CC and have the latest beta of CH installed.
CS6 files are provided as well, if you want to use the custom mouth shape control slider, use the mouth shapes and have a look at the simple set up.
A demo folder is provided with a rendered image sequence, so the AE demo file will work without Character Animator.
00:21 importing the PSD-template to CH, explaining the various triggers
01:15 importing an audio file, adjusting the scene
01:55 computing the visemes
02:49 importing the CH project via dynamic link to AE
03:36 importing the AE preset file
04:05 having a quick look at the implemented mouth shape, with the usual time remap workflow
04:47 reactivating the analyse expression to let the set up work (sorry, did not show/explain the simple expression, but you will have guessed it: sampleImage... ;)
05:13 converting the expression to keyframes
05:48 removing duplicate keys with Paul Tuerslay's script aenhancers.com/viewtopic.php?f=11&t=2166
06:11 copying the keys to the desired mouth shapes layer
06:39 adding it to a new scene
now some repetition:
07:29 if the audio changes and/or you need other audio: going back to CH, repeating the steps
08:40 nice thing about the dynamic link: the scene gets updated in AE when changed (plus you don't have to render an image sequence all the time)
10:10 finishing up with the steps, reducing the project
Thanks for reading / watching! :)
Audio bits taken from:
The Raven by Edgar Allan Poe - archive.org/details/raven
The Tell-Tale Heart by Edgar Allan Poe - archive.org/details/miscellaneouspoe_1501_librivox