Hey there, I created a simple tool for making 2D characters animate their mouths to audio. It consists of a custom component that sits on a Sprite Renderer and switches the sprite and a custom Timeline Track to control the sprite. I leverage the fantastic Rhubarb tool to auto-create lip sync from a given audio file. Here's a video of the process, skip to 1.25 for the result. https://github.com/gilescoope/rhubarb-timeline Let me know what you think!