Refinement Best Practices 

Stick to the Source Media as much as possible.

If the vub is slightly out of sync, an NLE audio edit or nudge is a good starting point.

For example: If the character only speaks at the beginning of the shot, ease the interpolation from 100 to 0 after the line.

Use a “light touch”

The intention is that there shouldn’t be a need to add a large number of keyframes to the timeline: the majority of the final PT Result should be derived automatically by DeepEditor

Heavy movements can look unnatural. Start with 10 or -10. Blend shape adjustments should rarely go above 30 or -30.

Don’t overwork the shot. Too many refinements can make the output media look worse, not better.

Smoothly Transition

One or two frames is not enough time for a mouth to completely change. “Ride the wave” and try to take at least 4 frames to transition.

Note: This is not a “rule”. Sometimes a character may speak very quickly and need sudden changes. 

Light moves faster than sound.

Starting a movement a frame or two early may look better to the viewer.

Try avoiding 'Advanced Blendshapes'

Advanced blenshapes should only be used as needed. Standard blenshapes give the clearest image, while too many advanced shapes will cause the image to look soft.