I'm editing with Vegas Pro 23. I shot an event where the speaker is narrating a power point. My camera goes back and forth from the person's face and the projected images, which I don't want the audience to see this. I would rather grab a frame from the screen and stretch the image out while the person is talking. To do this I ungroup the clip, and place the still photo to the video track, stretching it until I want to switch back to the speaker's face. The problem is now the voice and the person's lips are out of synch. I group the still photos and sound together but they are slightly out of synch. How do I prevent this from happening or how can I fix it, I'm not good at lip reading. This is my first post here, hope I have explained the issue. Jim