I'm at my wit's end with this problem. Char Animator lip sync is throwing in S visemes at the beginning of my words and in between words. The audio is super clean. I use an audio booth and a high-end mic, and it's audio engineered to be clean.
If I try to use a loaded transcript, Character animator crashes 10% through, even though it's only a 5-minute animation.
My computer is a high-end gaming machine just bought this year so it's not a processing power or memory issue. I've altered the lip sync settings changing the db muting and the viseme detection and the problem doesn't improve. I loaded an overly noise reduced and noise gate processed audio test file, and the same problem happens.