system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 How do animated shows like South Park and Futurama sync up audio and the animations? What’s the process here?
gpt
There are animation tools that do this automatically. You provide the tool with a library of mouth positions that correspond to different sounds in a language. Then run the voice actor's audio through the program, and the program detects what sound is playing at each moment, and selects the correct mouth position accordingly.