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Submagic: Add AI B-roll and transitions

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Demo summary

The 'Magic B-roll' feature is demonstrated, showing how the tool automatically inserts relevant stock footage and transitions based on the video's context.

Step-by-step

  1. Click on the B-roll section in the top menu
  2. Click on Add a media
  3. Select the Magic B-roll button
  4. Adjust the Percent of Magic slider to determine the amount of B-roll to add
  5. Select the video type between free or premium videos
  6. Toggle Enable transitions on or off
  7. Click Generate
  8. Review the generated footage and click Edit B-roll to change or delete assets that are not fitting

Options

  • Add AI B-roll
  • Add AI images
  • Upload manual B-roll from your computer
  • Manually find images or use the AI generator feature to replace specific clips

Tips

  • Set the Percent of Magic to 50% for a balanced amount of B-roll
  • Always go over the video after generation to check if the added clips are fitting
  • Use the AI generator feature to create specific footage if the stock library doesn't have a fitting match

Highlights

“this makes it so easy because we don't have to search for extra footage for hours”

All demos from “How to Edit Viral Shorts in 2026 (Submagic Tutorial)”

  1. 0:241:04Create a caption project in SubmagicThe user demonstrates how to start a new project in Submagic by uploading an MP4 file and selecting English as the source language to generate AI captions.SubmagicAI Video Editor
  2. 1:310:56Remove silences and trim video with SubmagicThe demonstration shows using the 'Trim' tab to automatically detect and remove silences using the 'extra fast' setting and performing text-based editing to delete sentences.SubmagicAI Video Editor
  3. 2:462:35Style and customize captions in SubmagicThe user shows how to apply creator-inspired caption styles, adjust text position with a safe-zone overlay, change colors, and modify font settings like stroke weight and animations.SubmagicAI Video Editor
  4. 6:011:24Add AI B-roll and transitionsCurrentThe 'Magic B-roll' feature is demonstrated, showing how the tool automatically inserts relevant stock footage and transitions based on the video's context.SubmagicAI Video Editor
  5. 7:310:20Apply Magic Zooms in SubmagicThe user demonstrates the 'Magic Zooms' feature which adds dynamic camera movement to static talking-head footage to keep viewers engaged.SubmagicAI Video Editor
  6. 8:322:04Convert long-form video to shorts with Magic ClipsThe user demonstrates the 'Magic Clips' feature by pasting a YouTube URL and showing how Submagic identifies the most viral moments and ranks them with a virality score.SubmagicLong Video To Short Video AI
  7. 10:380:31Export video and generate AI descriptionsThe final step shows the export process, including the automatic generation of AI-written video titles and descriptions for social media platforms.SubmagicAI Video Editor
  8. Watch “How to Edit Viral Shorts in 2026 (Submagic Tutorial)” →

AI Video Editor

  1. 1:480:47Selecting caption templates in SubmagicThe user demonstrates how to browse and select different caption styles and templates (like Mr. Beast or Alex Hormozi styles) within the Submagic interface.Marketing Island
  2. 2:371:00Customizing caption styles in SubmagicThe video shows the customization panel in Submagic where users can adjust font family, weight, size, color, stroke, and animations for their captions.Marketing Island
  3. 3:371:33Editing transcript text and emojis in SubmagicThe creator demonstrates how to double-click and manually edit the transcribed text, add emojis, and toggle the visibility of specific caption segments in Submagic.Marketing Island
  4. 5:100:48Adding an AI hook title in SubmagicThe user shows how to generate and position an AI-suggested hook title at the beginning of a video clip using Submagic's pro features.Marketing Island
  5. 6:450:58Trimming video segments in SubmagicThe demonstration shows how to select and remove specific sections of a video timeline and use the undo function within the Submagic editor.Marketing Island
  6. 7:451:01Adding B-roll and images in SubmagicThe creator demonstrates searching for and inserting B-roll media and images into the video project to enhance visual engagement.Marketing Island
  7. 1:040:58Generate AI captions with SubmagicThe user demonstrates uploading a video to Submagic to automatically generate captions with highlighted keywords, emojis, and animations.Success Minder
  8. 2:030:45Trim video and remove silences in SubmagicThe demo shows how to use the transcript-based editor to remove silences and bad takes with a single click or manual text selection.Success Minder
  9. 3:331:07Customize caption styles and safe zonesThe user shows how to apply popular creator styles (like Alex Hormozi or MrBeast) and use the app interface overlay to position captions correctly.Success Minder
  10. 4:401:02Automated B-roll and Magic ZoomSubmagic's AI analyzes the transcript to automatically insert contextually relevant B-roll footage and dynamic zoom effects.Success Minder
  11. 6:100:38One-click AI Auto EditThe demo shows selecting a template and using the 'Create AI' feature to fully edit a video's captions and B-roll automatically.Success Minder
  12. 0:241:04Create a caption project in SubmagicThe user demonstrates how to start a new project in Submagic by uploading an MP4 file and selecting English as the source language to generate AI captions.Submagic Studio
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