Sync Blender: Auto Lip

Use Blender’s Keyframe Noise Modifier or Smoothing tools on the auto-generated curves to remove the robotic "twitch" common to automated lip sync.

is a stand-alone open-source program that outputs a .dat file readable by Blender. auto lip sync blender

My character has a beard/tusks (non-human). Solution: Use the "Mouth Open" data to drive a bone that moves the beard, rather than trying to match every human viseme. Use Blender’s Keyframe Noise Modifier or Smoothing tools