rhubarb-lip-sync

Why we included this project

Rhubarb Lip Sync is a command-line tool that converts voice recordings into timed mouth-position data for 2D characters. Point it at an audio file and it analyzes the speech, producing viseme timing (the classic A to F set, plus optional extended shapes) that you can drive a character rig with. It has direct integrations for After Effects, Spine, Moho, OpenToonz, and Vegas Pro, and can also write plain TSV, XML, or JSON, so it fits into most animation pipelines. It runs locally on Windows, macOS, and Linux with no cloud dependency, which matters for game developers and small animation teams that want to avoid sending their recordings to a cloud service. You also control which mouth shapes your art style supports, so the output matches your characters rather than forcing a one-size-fits-all set.