Motion builder's voice device

Hi
I’m looking for an automatic solution for facial animation, especially for lipsync speech. In motion builder, there’s a tool called voice device that analyzes the voice and syncs the mouth shape to voice. I don’t have any knowledge of sound and voice analyzing, how can it be achieved in unreal engine? Is there any SDK or library that might helps? Or is there any other way to implant any automatic facial animation?

Cheers