Video editing guide
AI Video Editing Masterclass
A practical AI9app Video Editor workflow: import clips, edit the timeline, check subtitles and export an MP4.
From generated clips to a finished video
Start with a small project: three product clips and one music track. This guide uses the AI9app Video Editor to arrange the shots, add subtitles and export the result. Sign in to use the editing workspace.
1. Import and arrange your clips
Import your video and audio from My Stuff or upload files. If you generated shots in AI Space Note, use its Import to Video Editor action to bring selected cards onto the timeline. Put the establishing shot first, the product detail second and the closing shot last. Trim unwanted starts and endings, split a clip at the playhead, and reorder the pieces to set the pace. Add music or overlays, then preview the whole sequence and check the audio levels.
2. Create and review subtitles
Run Auto Caption on the footage, then check the transcript and timing against the preview. Correct names and product terms manually. Adjust subtitle styling and position so the text remains readable. Translate the subtitle track when you need another language, and review that translation before publishing. Export an .srt file if you need a separate subtitle file.
3. Prepare the frame and check the result
Choose the aspect ratio for your destination, then inspect each shot and the subtitle position in the preview. Check the product stays visible, captions avoid important details, and transitions do not cut off speech.
4. Export and keep the project
Export a rendered MP4 and watch it from beginning to end before publishing. Save the project if you will revise the campaign or make another language version. AI tools and rendered exports use credits; review the displayed price before confirming an action.
A useful first exercise
Arrange three product shots, remove a pause, add a short music track, review the captions and export one version. Judge the result by clear pacing, readable subtitles and clean audio rather than an assumed percentage of time saved.