Audio2video any hints on lip sync

[fralik]

I am using audio2video script with a song, i.e. audio contains music and voice. The produced video doesn't have any lip movement. On the face mesh I can see small lip movement, but not on the image. Any hints on improving this?

Could it be because of default pose_temp?

[Zejun-Yang]

pose_temp only provides head pose. And large amplitude mouth movements would result in improved lip synchronization in the generated video.