Ad Due Yesterday and Still No Audio
You generate the video, it looks right, then you realize it's silent. Now you need a voiceover artist, a sound editor, or at minimum another tool and another round of exports. Meanwhile the campaign window is closing. Veo 3.1 eliminates that step. Audio is generated with the video in a single pass, dialogue, ambient sound, and effects all timed to what's happening on screen. For teams producing 20, 50, or 100 ad variants a week, removing one production handoff is the difference between hitting the launch date and missing it.