How to Use Vmaker’s AI to Automatically Add B-Roll to Your Videos

Searching for the perfect B-roll footage is one of the most time-consuming parts of video editing. Vmaker’s AI B-roll feature analyzes your video’s content and automatically suggests relevant stock footage to enhance your story.

In this tutorial, I’ll show you exactly how to use this feature to add professional B-roll to your videos in minutes instead of hours.

What Is AI B-Roll and Why Does It Matter?

B-roll is supplementary footage that adds visual interest while someone is speaking or narrating. Instead of watching a static talking head, viewers see relevant visuals that reinforce the message.

Without B-roll: Viewer sees 10 minutes of you talking at a camera. With B-roll: Viewer sees engaging clips that illustrate your points.

Traditionally, finding B-roll means:

1. Searching stock footage sites for hours
2. Downloading and importing clips
3. Manually timing each clip to your narration
4. Hoping it all looks cohesive

Vmaker’s AI automates most of this process. The AI listens to your video, understands context, and suggests relevant clips at the right moments.

What You’ll Need

• A Vmaker account (free tier works)
• A video file with voiceover or speech (MP4, MOV, WebM)
• An internet connection (B-roll comes from online stock libraries)

Step 1: Import Your Video to Vmaker

1. Go to vmaker.com and sign in (or create a free account)

2. Click “Create New Project” and select “Import Video”

3. Upload your video file - This should be your main footage (talking head, screen recording, etc.)

4. Wait for processing - Vmaker will analyze the audio and prepare for editing

Step 2: Access the AI B-Roll Feature

1. Open your video in the Vmaker editor

2. Look for the “AI Tools” or “Magic Tools” section in the left sidebar

3. Select “AI B-Roll” or “Auto B-Roll”

4. Click “Analyze Video” - The AI will process your audio to understand the content

Processing takes 1-3 minutes depending on video length. The AI transcribes your speech and identifies key topics, objects, and concepts that could benefit from visual support.

Step 3: Review AI B-Roll Suggestions

After analysis, Vmaker displays suggestions in a panel:

What you’ll see:

• Timestamp markers showing where B-roll is suggested
• Preview thumbnails of recommended stock clips
• The spoken words that triggered each suggestion
• Alternative clip options for each suggestion

Example suggestions:

• You say “working from home” → Suggests: home office footage, laptop clips, remote work scenes
• You say “checking email” → Suggests: computer screens, inbox visuals, typing hands
• You say “summer vacation” → Suggests: beach scenes, travel footage, outdoor activities

Step 4: Select and Insert B-Roll Clips

For each suggestion:

1. Preview the clip by hovering over the thumbnail

2. Click to select your preferred option (or browse alternatives)

3. Click “Insert” to add it to your timeline at the suggested position

4. Adjust timing if needed - Drag the clip edges to extend or shorten

Pro Tips:

• Don’t accept every suggestion - be selective about what truly adds value
• Mix clip lengths - some quick 2-second cuts, some longer 5-second establishing shots
• Consider pacing - don’t switch B-roll too frequently or it becomes distracting

Step 5: Fine-Tune B-Roll Placement

After inserting AI suggestions, review the timeline:

Adjust Timing

• Move clips to start slightly before the spoken trigger word
• Extend clips to cover complete thoughts, not just keywords
• Trim clips to remove unnecessary motion or awkward endings

Add Transitions

• Click between your main footage and B-roll
• Select subtle transitions like “Cross Dissolve” (0.3-0.5 seconds)
• Avoid flashy transitions that distract from content

Maintain Audio Continuity

• Keep your voiceover playing under B-roll (don’t cut audio)
• Optionally lower B-roll clip’s native audio (if any) to avoid confusion
• Ensure your voice remains the primary audio track

Step 6: Add Background Music (Optional)

With B-roll in place, background music can enhance the professional feel:

1. Click “Audio” in the Vmaker sidebar

2. Browse Vmaker’s royalty-free music library

3. Select a track that matches your video’s tone

4. Adjust volume - Keep music at 10-20% so it doesn’t compete with your voice

Step 7: Export Your Enhanced Video

1. Click “Export” or “Download” in the top right

2. Select quality - 1080p is standard for most platforms

3. Choose format - MP4 works for all platforms

4. Wait for rendering - Vmaker processes and combines all elements

5. Download - Your video with AI B-roll is ready!

Best Practices for AI B-Roll

Do:

• ✅ Use B-roll for key points you want to emphasize
• ✅ Keep clips short (2-5 seconds typically)
• ✅ Match B-roll tone to your content (professional for business, casual for vlogs)
• ✅ Return to your face for important emotional moments
• ✅ Preview the full video before exporting

Don’t:

• ❌ Add B-roll for every sentence (overwhelming)
• ❌ Use clips that are too literal (you say “cat” and show a cat)
• ❌ Choose distracting or busy footage
• ❌ Forget to check for awkward transitions
• ❌ Use B-roll during calls-to-action (show your face)

Troubleshooting Common Issues

AI Suggestions Are Irrelevant

Cause: Unclear audio or uncommon terminology Solution: Speak clearly and use common words the AI recognizes. Niche topics may need manual B-roll selection.

Not Enough Suggestions

Cause: Short video or minimal spoken content Solution: AI B-roll needs sufficient audio content to analyze. Very short clips or mostly silent videos won’t generate many suggestions.

B-Roll Looks Out of Place

Cause: Style mismatch between your footage and stock clips Solution: Filter by video style (cinematic, casual, corporate) when browsing alternatives. Consistent color temperature helps clips blend.

Conclusion

Vmaker’s AI B-roll feature turns hours of stock footage hunting into a few minutes of reviewing suggestions. While it’s not perfect—you’ll still want to curate and adjust—it dramatically speeds up the editing process.

For talking head videos, tutorials, and educational content, this feature alone justifies using Vmaker over other free editors. Combined with no-watermark exports and other AI features, it’s a powerful tool for content creators.

Start with a simple video—perhaps a 2-3 minute explainer—and see how the AI suggestions work for your content style.

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