Blender Rhubarb Lipsync is an addon for Blender integrating Rhubarb Lip Sync to automatically generate mouth-shape keyframes from a pose library.
Rhubarb Lip Sync is a command-line tool that automatically creates 2D mouth animation from voice recordings. You can use it for characters in computer games, in animated cartoons, or in any other project that requires animating mouths based on existing recordings.