If Rhubarb feels too technical, the add-on by CGDash (available on Blender Market, ~$10-20) offers a native feel. It has a built-in spectrogram and allows you to manually drag viseme bars onto a timeline while listening to audio.
The add-on creates shape keys (morph targets) or controls bone poses for mouth positions (e.g., A, E, O, M, F, etc.).
Automating lip sync in Blender typically involves using the Lip Sync add-on auto lip sync blender
If you want to choose the best method for your current project, let me know:
You assign your character's shape keys to Rhubarb’s expected viseme letters (A through H). You then point the add-on to your audio file, and it bakes the keyframes instantly. If Rhubarb feels too technical, the add-on by
Automated generation can sometimes result in jittery, hyperactive mouth movements. Select your keyframes in the Graph Editor, right-click, and use the Smooth Keys operator to fluidly blend transitions between mouth shapes.
“AI auto lip-sync,” she said. “Blender add-on. Feed it audio, it spits out shape keys.” Automating lip sync in Blender typically involves using
(Implement in Blender’s text editor, run to bake animation.)
To get clean results from any automated tool, your character model should ideally have the standard viseme shapes pre-made, such as: (Vowels) E (Wide mouth) MBP (Lips pressed tightly together) FV (Lower lip touching upper teeth) WQ (Puckered lips) Rest (The neutral, closed-mouth pose) 2. Top Auto Lip Sync Tools for Blender
Use tools like Rem Motion Pro to add head movement to the auto-lip sync for a complete, realistic talking character. 5. Conclusion
: Map specific mouth shapes to phonemes (sounds) like 'A', 'E', 'O', and 'M/B/P' to ensure the character's speech looks natural.