To install an auto lip-sync tool in Blender, you can use the built-in Blender Extensions for modern versions or popular third-party add-ons like Parrot Lipsync and Rhubarb Lip Sync. Guide: How to Install and Set Up Auto Lip-Sync in Blender
Once installed, you must prepare your character for the tool to work:
Some tools require extra steps to link to external programs: Documentation - Installation auto lip sync blender install
References
Search for "Auto Lipsync for Blender" (by Benebois or similar). Download the ZIP. To install an auto lip-sync tool in Blender,
The installation process for all three is simple: Download the .zip > Preferences > Add-ons > Install > Enable > Point to executable (if required). Once you successfully complete your first auto lip sync install and watch your character speak life into a 10-second audio clip in under 3 seconds, you will never go back to manual keyframing again.
Download the Add-on: Get the latest .zip file from the Parrot GitHub repository or the Rhubarb releases page. Blender Foundation
Step 2: Accessing Preferences