Smooth Sequence mode: built for turntable / 360-degree object shoots with hundreds of sequential photos. Instead of a hard jump-cut between each photo, every frame continuously cross-blends into the next one across its whole duration - so hundreds of stills flow into one smooth rotating video instead of looking like a flickering slideshow. Add your images in capture order below (use Move Up / Move Down if any are out of sequence), then use "Apply to All Slides" to set every slide to the same short duration in one click.

How it syncs: the narration plays once from the start. If it runs longer than your slides, the last slide automatically stretches to match it.

Add a Narration Script to each slide below (or reuse the caption). This mode reads the script aloud in real time and - when you click Generate Video - asks Chrome/Edge for permission to share this tab's audio, then records it in sync with the slideshow. That is currently the only way a browser can capture its own text-to-speech into a downloadable video.