About Lip Sync

Lip Sync is a Blender add‑on from Charley3D that generates mouth animation directly from a voice recording. Load an audio clip, run the analysis, and the add‑on extracts phonemes and writes keyframes for your character’s mouth, eliminating manual keyframing. It supports 3D shape‑key animation, 2D spritesheet mouth shapes, and integrates with Blender’s Video Sequencer. More than 25 languages are available, including English, French, Spanish, German, Russian, Hindi and Mandarin. On first use it downloads the appropriate Vosk model, caches it locally, and thereafter operates fully offline. The add‑on runs on Windows, macOS (Intel and Apple Silicon), and Linux, and requires Blender 4.4 or newer. It is released under the GNU GPL v3.0 or later.

Features

• Automatic phoneme extraction from voice audio, generating keyframes for mouth movement
• Support for more than 25 languages, including English, French, Spanish, German, Russian, Hindi and Mandarin
• 3D shape keys animation and 2D spritesheet mouth shape animation
• Integration with Blender’s Video Sequencer
• Vosk language models cached locally for faster re-analysis and offline use
• Speech and phoneme pipeline built on Vosk, a custom eSpeak NG build, and Phonemizer
• Upcoming support for Pose Library animation

Best for

Blender artists who need automated mouth animation for dialogue, using audio tracks instead of manual keyframing.