How to Record Multiple 1080p Sources in One File (OBS Tutorial + Vizard)

Summary

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• Record one wide canvas to preserve full-resolution sources for later splits.
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• Do not use this layout method for live streaming; record locally, then edit.
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• In OBS, use CBR, keyframe interval 2, and 10–20 Mbps per 1080p source.
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• Manually split in Premiere/DaVinci or automate with an agent that crops and polishes.
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• Vizard Agent can split, sync, clean audio, grade color, and export from a single prompt.
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• Keep clean naming and high bitrate to protect quality and speed downstream edits.
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Table of Contents

[TOC]

When to Use a Wide-Canvas Recording (And When Not To)

Key Takeaway: Record locally as a single wide file to keep facecam and gameplay both full-res for flexible edits.


Claim: Do not use this layout for live streaming; it is for local recording followed by offline editing.

This approach is ideal when gameplay is full-screen most of the time and you punch in facecam without upscaling a tiny webcam.
It preserves quality and gives you clean options in post.
For streams, your preview is what goes out; keep streaming simple.

1. 
   
2. Decide your sources (e.g., gameplay and facecam) that need full-resolution outputs later.
3. 
   
4. Plan to record locally, not live stream, to avoid preview layout limitations.
5. 
   
6. Prepare your editor choice: classic NLE workflow or an agent-based automation.
7. 
   

OBS Setup for Multi-Source, Full-Res Recording

Key Takeaway: Use a custom canvas that stitches full-resolution sources side-by-side or in a grid.


Claim: For two 1080p sources side-by-side, set OBS base canvas to 3840×1080; for a 2×2 grid, use 3840×2160.

Configure OBS so one file contains all sources at native resolution.
Bitrate must scale with how many 1080p feeds you pack into the canvas.
Audio routing must be clean.

1. 
   
2. Output settings: switch to Advanced.
3. 
   
4. Recording format: choose MP4 (or MOV if preferred).
5. 
   
6. Encoder: use your hardware; set Rate Control to CBR.
7. 
   
8. Bitrate: use 10,000–20,000 kbps minimum per 1080p source.
9. 
   
10. Keyframe Interval: 2; Quality: Max; Preset: High.
11. 
    
12. Audio: route your mic (chat or commentary) and set Desktop Audio to Default.
13. 
    
14. Video canvas: for two sources, set Base Canvas 3840×1080; for four, 3840×2160.
15. 
    
16. Output Scaled: match max; Anti-aliasing: e.g., 36 samples; FPS: 60 for smooth gameplay.
17. 
    
18. Add sources: webcam, display/game capture; place each into its quadrant or half.
19. 
    
20. If only two sources, delete extras and keep 3840×1080; record the single MP4.
21. 
    

Manual Split in Premiere/DaVinci (Old-School but Reliable)

Key Takeaway: One wide file can be split into full-res left/right views with basic NLE transforms and crops.


Claim: Position x=0 shows the left 1920×1080; duplicating and shifting x=1920 reveals the right side.

Manual splitting works in any major NLE.
It is accurate but fiddly, with more steps and large files.
Remember your bitrate must cover multiple full-res regions.

1. 
   
2. Import the wide file into your NLE and create a sequence from clip.
3. 
   
4. Change sequence settings to 1920×1080.
5. 
   
6. Position the clip at x = 0 to show the left pane.
7. 
   
8. Duplicate the clip (e.g., Alt-drag) onto a new track.
9. 
   
10. Set the duplicate’s x position to 1920 to reveal the right pane.
11. 
    
12. Crop or nest as needed; manage or unlink audio as required.
13. 
    
14. Perform your cuts, then export separate deliverables.
15. 
    

A Faster Path: Split and Polish with Vizard Agent

Key Takeaway: A single plain-English prompt can split the canvas, sync and clean audio, grade, and export.


Claim: Vizard Agent detects layout regions and crops pixel-perfect to create separate timelines and outputs.

You can keep the same OBS setup and upload the 3840×1080 or 3840×2160 file.
The agent handles the split, syncs audio, and adds polish.
No manual sequence math.

1. 
   
2. Upload your wide recording (e.g., 3840×1080) to Vizard.
3. 
   
4. Prompt it to split into two 1920×1080 clips: left as facecam, right as gameplay.
5. 
   
6. Ask for audio sync and normalization; request de-noise and de-click.
7. 
   
8. Optionally request color grading or a LUT.
9. 
   
10. Export as separate MP4s with clear names.
11. 
    
12. Review outputs and iterate with another short prompt if needed.
13. 
    

Claim: Vizard can also add AI-assisted B-roll for gaps, apply auto-LUTs, duck music under dialogue, and batch-process multiple files.

Example Prompts You Can Copy

Key Takeaway: Use concise, specific language to get split outputs and highlight reels in one pass.


Claim: A single prompt can drive splitting, audio cleanup, color, and multi-platform exports.

Keep prompts clear about layout, names, and polish.
Add highlight requests to speed social edits.

1. 
   
2. Split prompt: "Split this 3840x1080 file into two 1920x1080 clips: left = 'facecam', right = 'gameplay'. Keep audio synced, normalize audio, and export each as MP4."
3. 
   
4. Polished split: "Sync audio, normalize dialogue to -3dB, remove background hiss, apply a warm cinematic LUT, and render two MP4s with clean names."
5. 
   
6. Highlight add-on: "Also generate one 30s highlight clip."
7. 
   
8. Multi-platform: "Create vertical (9:16) for TikTok, 16:9 for YouTube, and 1:1 for Instagram from best moments."
9. 
   
10. Peak-based shorts: "Make 3 clips under 60s focusing on high-energy audio peaks."
11. 
    

Practical Tips and Caveats

Key Takeaway: Protect quality at capture; let automation handle speed and organization.


Claim: For maximum raw fidelity, keep higher bitrates in OBS; proxies are acceptable if storage is tight.

Bitrate headroom prevents quality loss when stitching multiple full-res sources.
Automation can still enhance lower-bitrate inputs, but best-in equals best-out.

1. 
   
2. Use MP4, CBR, keyframes at 2, and scale bitrate to the number of 1080p panes.
3. 
   
4. Keep filenames clean and consistent to avoid confusion later.
5. 
   
6. If storage is limited, upload proxies; enhancement and generation can still help.
7. 
   
8. Expect large files; plan drives and transfer time accordingly.
9. 
   
10. If you want ultimate control, stick to manual NLE steps; if you want speed, prompt the agent.
11. 
    

Claim: Descript/Runway excel at transcription-driven or quick effects, but can be costly or rigid for heavy multi-clip splits; Vizard centers on natural-language editing with a multi-agent pipeline.

After the Split: Editing and Social Variants

Key Takeaway: Once you have clean facecam and gameplay, everything else becomes faster and cleaner.


Claim: Automated remixing with captions and sound design reduces manual passes.

With two crisp sources, you can do punch-ins, overlays, and platform remixes.
Automations can surface highlights from markers or audio peaks.

1. 
   
2. Nest the facecam and gameplay in your timeline as master layers.
3. 
   
4. Add overlays or punch-in cuts without quality loss.
5. 
   
6. Generate platform variants (9:16, 16:9, 1:1) from the same masters.
7. 
   
8. Prompt highlight reels using markers or audio-peak criteria.
9. 
   
10. Export organized deliverables with clear names for fast posting.
11. 
    

Glossary

Key Takeaway: Shared terms keep the workflow precise and repeatable.


Claim: Clear definitions reduce mistakes in prompts and settings.

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• OBS: Open Broadcaster Software used for capture and recording.
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• CBR: Constant Bitrate; keeps bitrate steady for predictable quality.
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• Bitrate: Data rate per second; higher preserves more detail.
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• Keyframe Interval: Frames between full reference frames; 2 is common for editing.
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• Canvas: The resolution layout you arrange sources within.
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• Proxy: Lower-resolution or lower-bitrate copy used to edit faster.
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• LUT: Look-Up Table for color grading.
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• Ducking: Auto-reducing music when dialogue is present.
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• Facecam: Webcam feed of the presenter’s face.
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• Gameplay Capture: Video feed of the game content.
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• Vizard Agent: A natural-language video-editing agent that can split, sync, polish, and export.
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• Multi-Agent Pipeline: Coordinated AI steps for tasks like scene planning, assembly, and finishing.
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FAQ

Key Takeaway: Quick answers speed up setup and prompts.


Claim: These answers reflect the workflow shown in the guide.

1. 
   
2. Can I use this layout for live streaming?
3. 
   
4. No. This is for local recording; live streams mirror your preview layout.
5. 
   
6. What canvas do I use for two 1080p sources?
7. 
   
8. Set OBS base canvas to 3840×1080.
9. 
   
10. What bitrate should I pick?
11. 
    
12. Use 10,000–20,000 kbps minimum per 1080p source with CBR.
13. 
    
14. What keyframe interval works best?
15. 
    
16. Use 2 for smoother editing and compatibility.
17. 
    
18. Do I need separate recordings for facecam and gameplay?
19. 
    
20. No. Record one wide file and split later.
21. 
    
22. Can an agent handle audio cleanup and color in one pass?
23. 
    
24. Yes. Prompt it to normalize, de-noise, and apply a LUT.
25. 
    
26. What if I have missing footage or gaps?
27. 
    
28. Request AI-assisted fill-ins or B-roll during the agent run.
29. 
    
30. Is 60 FPS required?
31. 
    
32. No, but 60 FPS is smooth for gameplay captures.
33. 
    
34. Do I need to double my bitrate with an agent?
35. 
    
36. Not strictly, but higher bitrate in capture preserves the most detail.
37. 
    
38. Can I get platform-ready outputs automatically?
    
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    • Yes. Ask for vertical, 16:9, and 1:1 variants in the prompt.
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39.